Problem(s) Encountered:

When I started I found I couldn't focus the guider -- the lights on the virtual control panel lit, but the stars did not change. Consulted Eric by phone and determined that I couldn't fix it by myself.  It didn't matter to much since MAXIM DL could still guide on the out-of-focus images.

Solutions:

Found the USB port on the TCS machine had stopped (PCI bus 1, device 0, function 0) due to reported problems (code 43).Reboot the PC and all is well again.