Does anybody else have PSP Mix Pack 2...   Have you notice that mixgate cause insane crashes in Sonar...   I can't get through forty five minutes without the audio engine, "panicking," and all tracks silencing, while the faders shoot beyond the heavens into the red, of red... 

I've written PSP..  but..  erm..  anybody else can confirm this?

cheers

Can't speak for mixpack, sorry. But I have had problems with other PSP products over time, and all problems were fixed, either by PSP or by a Sonar upgrade. (Vintage Warmer and Xenon spring to mind.) PSP is pretty responsive. Sometimes, PSP folks just had me use a previous version of a plug that was acting up, that would do the trick to work with Sonar. Previous versions (I mean something like X.03 vs. X.04) are often fine because the latest version would be something like an rtas fix which I didn't need. PSP may advise you on that, you might also just check out the downloads for a prior mixpack version and (if not too old) give it a whirl. (At least might be a temporary fix.)