Anyone else experienced this?

I saved a game eralier this afternoon, then reloaded it again this evening.

After a turn or two a diplo screen causes this blue screen of death to happen.. "page fault in non paged area"

This is a XPpro(32bit) machine with AMB 64 X2 dual core 5600 processor running four gig of ram with a NVIDIA GeForce 7050SE.

thanks