If you're using Sonar, take a good look at the 'Dreamstation' synth that ships with it. It can produce C64 sounds effortlessly, and I recall that the original soundbank was programmed by an X-C64 composer (though I can't remember for the life of me who it was)... If you want me to upload the sounds...

Afaik I am running the newest version (v1.5.1 I think). But I believe the problem is related to the VSTi wrapper from Cakewalk/FXPansion. I can live with "I refuse to play the first note in your sequence!", but when it comes to "I insist on playing a note until you kill this process, ...

Am I the only one to find QuadraSID really buggy? On my setup it hangs midi notes frequently and behaves nasty in general.

I guess it could be that I am using Cakewalk Sonar as the host for the program..