Crashing while in space
 

I had a strange problem happen to me everyttime i get space and usually around combat.. The game will crash and I will get an error message.... What is strange is that this only happens in space.

The error message sas error decompressing data.



I run vista home 64 bit, gtx 260, nforce 780i, q5500 quad core.
Grx at 1920x1080 maxed aa and setting if that would have anything to do with it maybe/?

The game runs great with no glitches besides the crashes , my drivers are also up to date

Thanks for any help