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What is the cause of this bad computer behavior

Discussion in 'Off Topic [BG]' started by CrewsControl, Jun 8, 2012.

  1. This "glitch" almost always happens with a browser window, but sometimes it happens with an Outlook email message.

    I click or tab away to some other window, do stuff, then come back to the browser window. I point my mouse at a link, and click to follow it. But instead of following that link, the page scrolls up 2 lines and the click is delivered two lines below where I was pointing, often on some other link I didn't mean to click on.

    It happens on Linux.
    It happens on Windows.
    It happens on OS/X.
    It happens with Firefox.
    It happens with Chrome.
    It happens with IE.
    It (sometimes) happens with Outlook.
    It happens whether I am running the program directly on the native OS, or through a remote session, or in a virtual machine.
    But it doesn't always happen. Only about half the time.

    It's extremely maddening, and I can find all kinds of bug reports about this to the websites of open source software involved: Chrome, Firefox, Ubuntu. But no solutions. :(

    Anybody else afflicted with this glitch?
  2. Pilgrim

    Pilgrim Supporting Member


    Don't feed them after midnight.

    I got nuttin'.
  3. MIJ-VI

    MIJ-VI Inactive Supporting Member

    Jan 12, 2009
    Have you tried a different mouse?
  4. Seems to be the only constant. That would be my guess.
  5. Hactar


    Sep 25, 2011
    Boulder, CO
    Definitely try the mouse.
  6. fdeck

    fdeck Supporting Member Commercial User

    Mar 20, 2004
    Madison WI
    HPF Technology LLC
    It's happened to me too. I think it's some websites that are loading content "above" where your mouse is at, and when that stuff is loaded, it shifts the page down. Is it more common at some websites than at others.
  7. mjbing


    May 5, 2005
    Western Oklahoma
    This one
  8. HaMMerHeD


    May 20, 2005
    It's a web thing.

    Pixel space, screen space, and document space are difficult things to track, as they change every time you move a window, scroll down, change screen resolution, increase text size, etc. It can't be accurately predicted by the website programmer (or even the web browser programmer), so lots of techniques exist to help calculate position of various elements of a web document. Problem is, it's still a bit fuzzy because there are things that the programmers cannot necessarily control.

    It used to be a non-issue, when almost all web pages were static documents. But these days, almost everything you see is dynamically generated, so pixel space has to be calculated, not measured. Problem with that is, relative positioning is not always accurate.
  9. 1958Bassman


    Oct 20, 2007
    Laptop? If so, make sure you aren't dragging your thumbs on the mouse pad. If it's an external mouse, unplug it, restart and plug it in again.

    Otherwise, stop surfing porn. :bag:
  10. These things are very abstracted for programmers today, especially web programmers. I'm not a developer, I do sysadmin work and can write perl scripts for that job, but I know what you are referring to. It makes sense that you would mention this. I can sometimes prevent it from happening if I first click somewhere on the element that contains the link I want to click on. But where to click is guesswork because the boundaries of web page elements are invisible for the most part. And clicking right on the element to switch focus to it often causes the jump scroll I am trying to avoid.

    That sounds plausible. This behavior has appeared and proliferated since the onset of iframes. It's gotten worse with DHTML and HTML5. I suppose the solution would have to come from the developers of the frameworks that web programmers use to create dynamic web pages. And I think modern versions of Outlook render everything including its own UI through some kind of DHTML using IE's libraries, so if I'm right that would explain why I see it there, too.

    Thanks for that.
  11. MIJ-VI

    MIJ-VI Inactive Supporting Member

    Jan 12, 2009
    OP, could you please provide a link or two to some of the sites which misbehave? I've yet to encounter this anomaly on any of the ones which I visit.

    BTW. Corrupted cookies? A BIOS update aimed at correcting cursor problems?
  12. HaMMerHeD


    May 20, 2005
    AJAX has caused a lot of wonkiiness too. And I think you may be right. Windows Presentation Foundation shares some characteristics of dynamic document generation in common with DHTML. They aren't really syntactically related, but they are conceptually linked.
  13. http://www.talkbass.com/

    and lots of other forum sites. CNN.com. Latimes.com. Wikipedia.org. Internal websites at my job.

    Follows me around everywhere, on all computers I use, all OS, and even virtual computers over a remote desktop connection.
  14. MIJ-VI

    MIJ-VI Inactive Supporting Member

    Jan 12, 2009
    These all work fine for me.

    Spooky. PC poltergeist?
  15. so if I understand correctly your clicks are registering a few spaces below the actual place you wanted to click. If you were on a touchscreen of some sort I would say calibration but since you are using a mouse, have you tried a new mouse? It could be a weird driver/hardware combination. Is it a wireless mouse?
  16. machine gewehr

    machine gewehr

    Sep 17, 2005
    A full computer scan for malicious software wouldn't hurt either.;)
  17. tk421


    Mar 3, 2010
    middletown, oh
    wait for pages to finish loading. and / or click blank space before trying to click a link - make sure you really have focus on the window first
  18. Bob Lee (QSC)

    Bob Lee (QSC) In case you missed it, I work for QSC Audio! Commercial User

    Jul 3, 2001
    Santa Ana, Calif.
    Former Technical Communications Developer, QSC Audio
    I'll guess that you use the scroll wheel on the mouse to scroll the browser window up and down, right?
  19. That sometimes does the trick, but just as often, it invokes the jump-scroll behavior I'm trying to avoid. :(

    Yep, Windows and Ubuntu. I use the magic track pad with the Mac Mini.

    There used to be this thing in X windows called focus-follows-mouse, which seems to have fallen out of favor. I can turn it on in Ubuntu, but it only affects whole windows, not elements within a window or a web page. I wish there was something like that for these HTML elements.

    But it would probably result in web pages jump-scrolling as I move the mouse around. :rolleyes:
  20. Strat-Mangler

    Strat-Mangler Inactive

    Aug 15, 2010
    You still haven't mentioned if you tried a different mouse. ;)

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