This is a reoccurring problem.
This occurs when playing any video content in Mythtv.
The video chip is an integrated Geforce 8200 on an MSI K9N2G Neo motherboard.
Both 195.36.15 and 195.36.24 create constant audio drop outs.
Driver 195.36.03 works fine.
I know this driver has fan issues but the chip set has no fan.
The new 256.25 beta driver fixes the problem.