While yes, I guess I need to check other GPU drivers (although I don't think there are any newer ones by Intel and I am more than sure that we (as in, the company where I help with IT) currently have PC's running this exact spec as well as drivers), it also seems like this is a completely different error (as this one is called by ACAD itself, and not by Windows).
It doesn't, as it not only talks about a newer version of ACAD, but also Windows. Also, the same argument as above applies (not the same error).
Anyway, I'm going to grab another copy and test with it. I'm also getting a Optiplex 3010 pretty soon, so I guess I will be able to check whether the issue persists on that hardware (of course on XP).