Sounds like a software-irritating-other-software kind of problem. Formatting your HD and reinstalling only the necessary + STW would fix it, I guess. But of course you don't want to do that.

Generally I would say, find which program causes the error and get rid of the program, or shut it down temporarily, etc...

Only people that either know this error or know lots about it (as I don't) will be able to help more specifically..