I did a fresh install, following the intructions to uninstall, delete registry keys, and reinstall. I have also installed the latest interface drivers (RME UFX).
The program times out trying to do simple operations. For instance, changing screensets takes 12+ seconds. Many other operations, changing anything in the preferences, even just closing the preferences dialog causes a white screen and often "program not responding" messages.
The program works well enough although I have been getting glitchy performance with small projects. Notably, sometimes UI updates are lagging when transport playing.
I have spoken with tech support, performed optimizations, disabled starup serveices, everything, and then and at their request performed the reinstall. Have also run malware and virus scans (these programs disabled during sonar operation) and found nothing. System is otherwise very healthy, no problems with any other audio apps.
Can someone at Cakewalk provide some insight into what is happening during a screenset change that would make this take 12+ seconds? If I know what it is doing I might be able to diagnoise (For instance if there is heavy disk IO during screenset change, then it would suggest a storage bottleneck or permissions problem..)
BTW, Sonar x3 producer has done this from the beginning when I purchased it about half year ago, so its not something that developed over time. I am making a serious push to replace my old sequencer but this nagging issue is causing me grief.