Well, I got no replies... did I post in the wrong forum?
Anyway, I have avoided the problem. I said avoided, not solved. I got OpenOffice.Org running by removing the modules sis and sisfb.I think those are related to DRI and framebuffer somehow, and I don't have much use for them, so wtf, I just removed them from the kernel config.
One thing: I noticed that this "regression" (if it's to be called a regression) happens during the upgrade from rc2 to rc3. But I can't see anything related to the sis and sisfb modules being modified in the patch.
Any ideas/possibilities of how the thing might have broken?