Yes, it sounds like it's time to consult the experts at Cakewalk Music Software. 1-888-CakeWalk will get you there support number which I cannot now recall. I hope there's a way to run SONAR in something like safe mode. It would be nice if you could just type something like: Sonar.exe /SafeMode Into the Windows Run Dialog and SONAR would open without trying to open any control surfaces. Please let us know what happens. Regards, Bill Bill McCann Founder and President of Dancing Dots since 1992 www.DancingDots.com Tel: [001] 610-783-6692 -----Original Message----- From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of Phil Muir Sent: Saturday, September 18, 2010 5:44 AM To: ddots-l@xxxxxxxxxxxxx Subject: [ddots-l] Re: Sonar will not launch Bill. The error that Christopher is seeing, can appear after Cake Talking is uninstalled or, after a control surface has been uninstalled. Have seen it happen here. Usually that error will go away once you have managed to successfully opened Sonar. Unfortunately though, Christopher isn't managing to open Sonar so, the error is still there. Regards, Phil Muir Accessibility Training Telephone: US (615) 713-2021, UK +44-1747-821-794 Mobile: UK +44-7968-136-246 E-mail: info@xxxxxxxxxxxxxxxxxxxxxxxxxxx URL: http://www.accessibilitytraining.co.uk/ -----Original Message----- From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of Dancing Dots Sent: 17 September 2010 22:41 To: ddots-l@xxxxxxxxxxxxx Subject: [ddots-l] Re: Sonar will not launch I am not sure why the presence or absence of CakeTalking would have any effect one way or the other. But if you do uninstall CakeTalking and something improves, please let us know. One other idea would be to try to use the System Restore utility to set your system back to yesterday or some time before whatever change took place that caused this failure. Start Menu Programs Accessories System Tools System Restore Press ALT+R to "Restore my computer to an earlier time". It may be that you did not have System Restore enabled and so this idea won't work. Or it may be that your most recent restore point is just too long ago to make it worthwhile to restore. Bill McCann Founder and President of Dancing Dots since 1992 www.DancingDots.com Tel: [001] 610-783-6692 -----Original Message----- From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of Phil Muir Sent: Friday, September 17, 2010 6:34 AM To: ddots-l@xxxxxxxxxxxxx Subject: [ddots-l] Re: Sonar will not launch Christopher. Do you have CT installed? If so, you may wish to try uninstalling CT first then, try relaunching Sonar. Then, reinstall CT after a successful Sonar launch. Regards, Phil Muir Accessibility Training Telephone: US (615) 713-2021 UK +44-1747-821-794 Mobile: UK +44-7968-136-246ll CT. E-mail: info@xxxxxxxxxxxxxxxxxxxxxxxxxxx URL: http://www.accessibilitytraining.co.uk/ -----Original Message----- From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of Kiskadee Sent: 17 September 2010 01:41 To: ddots-l@xxxxxxxxxxxxx Subject: [ddots-l] Sonar will not launch I am experiencing the strangest problem with sonar which results in it not loading. I have a pc with sonar 7 and although it worked yesterday, today when I launched it, it came up with a message "A Controller/Surface DLL is not installed" and the message will not disappear. Enter, Escape do not make it disappear, so I basically have to reboot. I have tried to do the control alt delete and force sonar to quit but that does not work either. My next idea was to install sonar 8.5 on the same pc. I did that and the same message came up. Does anyone have any ideas on this? Thanks,Christopher PLEASE READ THIS FOOTER AT LEAST ONCE! 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