All right, there is a program on my computer called "Xupiter" that I cannot get rid of. Its cause all the general nuisances like popups and changing a "broken link" type of page into some advertisement and not letting my get back to the main page. I've tried deleting it, but it won't let me, it flahes some sort of error message but it goes away too quickly for me to read. And I've also tried Ad-Aware, but it also did nothing. So how do I get this thing off my computer?