This seemed to be working for me.. changing affinity.. but then its hard to tell given that the problem is sporadic. but then it failed last night a few times.
NOW I have noticed a new issue.. I joined a DC server yesterday and got the popup about 'visual components not being compatible with this application blah blah.. chaning to windows 7 basic themes.. blah blah'
This has never happened before in the year I have been using 7. Then happened again on the IS82 server.