Hi, I've just installed Backtrack 5 64bit with Gnome in dualboot with windows7 on my notebook. Graphics card Radeon HD 7670M 2GB. The problem is that i can set the resolution of screen only at 800x600 or 1024x768, but I'd like to set it at 1366x768. How can i do it? I need drivers or something different? I'm a beginner in Ubuntu world help please!