I'm running Linux Mint 11 64 bit (Ubuntu 11.04 Based) after installing the Proprietary FGLRX driver via the Additional Drivers app for my ATI Radeon 3000 integrated graphics I get random screen flashes or corruption flickers for a second or so when using Teeworlds (Online Game) or XBMC (Media Centre) I'm pretty positive that it's something that the proprietary driver is causing as I didn't have this problem when using the open source driver...

any ideas why?

I've also posted a video of the problem on Youtube to better explain what's going on:

I've posted in both the XBMC and Teeworlds and Linux Mint forums just in case anyone else has had a similar problem and so far nothing