well I'd need to know what precisely it says but I'd say at this current time the most likely problem is because of a dual core memory issue. That's very odd because I have a dual core that never had any problem with SRO (or with memory permissions stuff ever actually except in programs I've written lol) If so, because of Joymax's wonderful protections, you can't set affinity to only core 1 on the process because somehow it's hidden. There are some solutions though so PM me if that's the case. Otherwise another time I've seen that when a piece of hardware breaks but trust me, you only see it once then

The only other cause I know is from viruses/spyware so download and install and update then scan with spybot search and destroy and ad-aware SE (both free at download.com) and I'd suggest dumping whatever antivirus is installed for Avast because it's free and beats the crap out of anything else out there.