I've just got my hands on the latest Guitar Pro. However, I can't run any ".gp4" files, because: You don't use the lastest version! You can download the latest version at the same address of the previous version (see your email registration to know the url) Well, my problem is that I "deleted" my email registration and can't "remember" the url. So please, if anyone knows the address, I'd be more than greatful if you can help me out. Thanks in advance.