Another user I know had this problem and this was his solution...
"Hey Scott thought I would let you know it was a issue with the GFX catalist driver I uninstalled it then just put on the display driver and Sonar is no longer hanging . Its the utility driver for the Radion 6450 the work around is install the catalist then uninstal everything but the display driver so happy I dont have it hanging now."

Scott

--
Scott R. Garrigus - http://garrigus.com - SONAR X2 Power! - http://garrigus.com/?SonarX2Power
* Author of the Cakewalk Sonar and Sony Sound Forge Power book series: http://garrigus.com/?PowerBooks
* Author of the Cakewalk Sonar ProAudioTutor video tutorial series: http://garrigus.com/?ProAudioTutor
* Publisher of the DigiFreq free music technology newsletter: http://digifreq.com/?DigiFreq
* Publisher of the NewTechReview free consumer technology newsletter: http://newtechreview.com/?NewTechReview

garrigus


Another user I know had this problem and this was his solution...
"Hey Scott thought I would let you know it was a issue with the GFX catalist driver I uninstalled it then just put on the display driver and Sonar is no longer hanging . Its the utility driver for the Radion 6450 the work around is install the catalist then uninstal everything but the display driver so happy I dont have it hanging now."

Scott

In Device Manager I see ATI Mobility Radeon HD 4330 under Display Adapter. I clicked the driver update button and it says its the latest driver. I don't understand this "install the catalist then uninstal everything but the display driver" part. What exactly do I need to do? 

Hi Jlien,

I don't know. I can try and put you in touch with the other person. Send me a PM or email.

Scott

--
Scott R. Garrigus - http://garrigus.com - SONAR X2 Power! - http://garrigus.com/?SonarX2Power
* Author of the Cakewalk Sonar and Sony Sound Forge Power book series: http://garrigus.com/?PowerBooks
* Author of the Cakewalk Sonar ProAudioTutor video tutorial series: http://garrigus.com/?ProAudioTutor
* Publisher of the DigiFreq free music technology newsletter: http://digifreq.com/?DigiFreq
* Publisher of the NewTechReview free consumer technology newsletter: http://newtechreview.com/?NewTechReview

Thanks Scott, I think I'll first contact tech support and hear their suggestions. I'm not in a hurry, anyway. 4-second freeze isn't that annoying. I can practice meditation momentarily. And...who knows, X2b might solve the issue. 

Same problem here with all vsti, and I have an NVidia card.

For the record, I posted about this problem some time back ...after an exhaustive set of questions from a fellow forum member we got nowhere. Other forum members kicked in reporting similar issue. Dear Cakewalk tech team.... we have a problem here amongst many users! Not necessarily your program ...but we can sure use your help!