Hmm, intel graphics cards are not very good but the one you have *should* be sufficient to play PS. Unfortunatelly I know little of the intel graphics driver situation on linux so I don't know what to recommend there I'm afraid.Greetings,
It is my understanding that with Karmic, the xorg.conf file that I usually use to "tweak" the video is no longer included or necessary. Could the issue be unrelated to video?