Upgraded my computer over the weekend, so it took care of a number of my problems, but I still have a periodic problem where the controls just freeze.  The game continues, but I can't input anything at all.  I've got a regular keyboard plugged into the computer as well and when things freeze up, I can't even get the game to respond to the keyboard--can't even ctl-alt-delete out of it.  I'm  using an i-pac4 usb.  I've had controls freeze totally and have to shutdown the computer.  If I go to Notepad, the controls obviously work and programming mode shows all is well.  Not sure why they don't respond sometimes.