I am having a problem with blue screen,

[proton45]

I was getting a random blue screen crash that sounds very similar to what you have been experiencing, and I too was having a very hard time running down the problem... In my case it turned out to be a setting in the audio config panel that was causing the problem. Once I turned off "audio enhancements and hardware acceleration" I stopped having the problem...its now been 11 months sense the last crash. (fingers crossed)