Question: How did you contact support? If you simply sent an e-mail to support@smartbear.com, you won't get an answer as that e-mail address is not set up for accepting direct e-mails. Use the following link in the future to contact support.
http://smartbear.com/support/message/?prod=TestCompleteAs for the crashing, I'm guessing it has to do with how Actual Multiple Monitors is wrapping the Windows UI. Since TestComplete works with the UI for interacting with applications, it may mean that TC is incompatibile with AMM. Try disabling your Actual Multiple Monitors utility and see if the problem continues.