Hi guys,
I have just managed to install Debian Sarge in my Inspiron 2650 laptop. After some battle everything looks nice now but from time to time it hangs (just like a Windows box

?) I can point with the mouse but can't click the buttons on the bars, sometimes the icons disapear (sometimes don't), keyboard shortcuts stop working (sometimes don't) Usually re-start the X server (ctr+alt+del) uses to resolve the issue but I lost any unsaved change...
I dont know how to fix it nor even where can I find relevant information. Any help will be welcomed, Thanks!