I never thought that it might be a video card or driver issue. Never heard of this before. Might need to check this out.
Eh, well, generally when it's a graphics card problem you have long bars or holes on the sims. Kind of like what happens when the objects file goes corrupt. Or, at least, changing drivers is what solved the weird clothing problem for someone on LJ recently. Whenever I've had the problem is was caused by one of those meshes you mentioned or the objects.package but apparently the graphics card is worth mentioning.
Yeah these aren't downloaded clothes...
These are Maxis meshes. Those aren't recolors of their clothes either, those are the ones that came with the game.
I'll try what you said, Morriganrant...rolling back the drivers.
Thanks.