Open up the Control Surface applet in Sonar. See what's there.
If you're NOT using a control surface, there should be nothing listed. If there is, delete it.
However, whatever devices you're using need to be turned on before launching Sonar. Best to turn them on before booting the computer, actually.
ORIGINAL: george4th
I am getting an error " a control surface dll is not installed". nothing new was installed, hardware or software. I recorded flawlessly wednesday night and turned sonar on thursday and got thos error. I have tried all previously mentioned fixes in older posts, but with no success. Sonar is dead in the water since it wont let me past this error. Someone please help. I have been on hold with sonar for 1 hour no with no answer and no reply to email support.
Sonar 3.1
p4 1500
asus p4b
George