I found the problem!

I do believe I've found the problem and a ridiculous "fix" for it.
 
A few days ago I posted a message about an error message saying the play/record device is in use or doesn't support the audio format.
 
Last night I was changing pickups in one of my guitars and turned amplitube on just to test them out. A few minutes later, after closing amplitube, I started X2 and damned if the same message didn't pop up. So I closed X2 and opened Dimension, loaded a drum sound, closed it then opened X2 again and guess what? No error message! Last night though there was a slight bit of lag after it starting playing again when I tried playing along or recording.
 
Just a few minutes ago I opened X2 and it worked fine. Curious, I closed it then opened amplitube just to see if it would happen again. Yup, it did. So for some reason all of a sudden either amplitube is still somehow being seen as still running, there's an issue within X2, or Win7 isn't closing programs properly.
 
Considering I haven't seen anyone else complain about this I'm not sure what the problem is. I'm considering a full reinstall of everything. This shouldn't be happening. I run amplitube as a standalone all the time and have never had this happen.
 
Before I take the long drawn out plunge to wipe everything out and do a complete reinstall, any ideas what to try?

is there a use drivers exclusively check box in sonar preferences that might help?

The soundcard is onboard realtek HD, but no drivers are installed for it and it's disabled in device manager. Sonar doesn't seem to support it anyway. I have a Presonus Fire Box exclusively for sound.

All of my Amplitube installs are fully registered and authorized. :)

Tried the share drivers option both on and off and it didn't make a difference.

Driver mode is ASIO.

if you launch amplitude stand-alone using asio then it will lock the interface.  any program using asio has exclusive access to the soundcard.  launching sonar while another asio application is running will always generate that message. 

That's what I was thinking too. It's closed completely. Nothing in task manager. If I have to deal with this as it is I guess I will. I do use Amplitube a lot.

What I can't deal with though is the latency that comes along with it now. While I can get it to play and record after getting the error message the latency is consistent.

Try this.

Start windows or restart.

Open up the task manager and select the processes tab. Make a note of all the processes running.

Open up Amplitube.

Check the processes running

Close Amplitube.

See if there are any processes still running.

This may show the problem.