Comment 17 for bug 931122

No dedicated video memory? You might want to try checking you BIOS settings to see if you can allocate more system memory to graphics. According to Wikipedia the Q35 chipset supports both DDR2-667 and DDR2-800 memory. If you have DDR2-667, upgrading to the faster DDR2-800 should help. You can find out what speed memory you have by running the following command in a terminal:

sudo dmidecode --type 17

or

sudo dmidecode --type memory

Check your motherboard manual to confirm what type/s of memory are supported and the maximum module size and maximum total memory size.

And please attach the output of glxinfo (you will need to install the mesa-utils package first).