Re: 6800U PCIe Issues - Summary
I'm out of ideas, right now.
For me this BIOS Update worked. I know how frustrating this is.
Perhaps you could TRY to update Xorg. i use 6.8.1. And as far NO ONE does exactly knows what this XID Message means it could be everything. What kernel do you use? I use 2.6.7. You could try that, too.
And as a last tip: I had a workaround for the time before the flash:
Disable any Screensaver that uses 3D/OpenGL. Use every Desktop Resolution you want, but start you games WINDOWED. i definetly know that this will work
If you want, contact me via ICQ.