It's unbelievably pathetic that this issue has not been addressed by NCH! I have the same problem. BSOD using Sonar & can't geg rid of the culprit: the parasitic "stdriver64.sys" which has replaced my proper sound card driver and refuses to go away without taking all my sound with it. Even with it I have low level hum ans static laden playback. It's all over the net what crap software NCH is producing, but ruining people's computers without a remedy or even so much as an apology is unforgivable! How about a response??!?