"a control surface dll is not installed" error help please

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

sonar will not let me in, the error stops the load.
george

when sonar boots, it stops me before the program loads. I am not able to get to any menus ie load a project. I have tried complete reinstall including editing the registry and deleting anthing related to cakewalk and deleting all shared control surface folders and shared util folders. restart and reload and still the same error. I called cakewalk tech support and followed these directions. nothing. I am dead in the water.
george

i have tried once again a clean reinstall by editing the registry uninstalling sonar deleting all shared folders and the reboot and reinstall...still the same message " a control surface dll is not installed". I check the shared contol surface folder and all is there. I even tried reregistering all the dll's individually to no avail. please, someone has got to have an answer to this problem. Cakewalk support had no insight and I have yet to get a reply to my support email.. I am still dead in the water. sonar will not boot past the opening to the error. i cant even tell it which surface to use.
Layla 24
Mackie Control universal
Sonar3.12
thanks,
george'

Try renaming your controller dll in the "Shared Surfaces" to something like xxxx.dll.bak or moving it out to somewhere else completely, and then try to start Sonar. If you can get it started uninstall your controller, rename or replace the dll to it's proper name/place and then reinstall your control surface again.

You might try resetting the MCU mode, updating your MCU drivers, check your MIDI connections. Mackie support had me flash firmware last time I had a problem, it helped.

I have encountered the same problem - occurred when moving from XP to Vista.

Roger Jeynes

Renaming the Normal template doesn't clear the problem. I've tried switching the MCU onto a different Midi interfaace, but the problem persists. No response from Cakewalk Tech Support.

Roger

Should have said: this is Sonar 7.0.2 with Vista, but XP still works fine if I switch the hardware (Control Surface and midi interface back over).

This problem went away a long time ago following upgrades to Sonar (now on X3)