I am running Win7 Ultimate/64, Sonar SE 8.5 in 64-bit mode, MOTU 896/8pre/MIDI Express with latest 64 bit drivers, I have experienced issues with the Sonitus:FX plug in, specifically the EQ was the one I tried. What happens is after adding the plugin to a track it causes Sonar to go into a Not Responding state, then eventually blue-screens my computer with a 'System Service Exception' error. Further troubleshooting has revealed it has something to do with the 2005 VC++ runtime libraries, and I believe specifically the file MSVCRT8.DLL. The problem does not occur in safe mode. I have also made sure I downloaded the latest Radeon video drivers, MOTU drivers, updated my BIOS, and made sure any unnecessary services were stopped. It is a vanilla machine for the most part, I have no other software or plug ins installed with the exception of Sonar 8.0 Studio which I had before installing the 8.5 upgrade. Hardware is a Dell Studio 540 quadcore, 8GB RAM.
Please note I am not trying to hijack this thread by any means, in fact I have a seperate thread started already for my issue stated above. The reason I am mentioning it here is I believe after troubleshooting this for several days, and reviewing the log files and error messages, that there are still some bugs to be worked out within the Sonar 8.5 64-bit application particularly running on Windows 7.