this is unlikely, my computer can run doom 3 max settings, but possible.
My thing is ok, check it, i redid my computer recently, put windows XP back on it to clean the HD off.
Before the wipe, i didnt have the disconnect thing happen at all, and i Believe its linked to the data/sdata.grf files somehow, im just not sure how. They make your client function differently depending which is used.
anyway, any more help is appreciated.