Bit of Maxim Voodoo.

Ive had repeatable problems with the guider graph and guidestar image freezing up, in turn Ascom decides to keep bumping the last 'x move' and doesnt stop unless I close and restart Maxim.
Ive since reinstalled W7 and software, plus have 4GB mem now, so Im keen to see if it reappears again.
I know doesnt help with your situation but it reminded me of my recent issues.
Teamviewer works via LAN. I had my iPad teamviewed to the laptop via wireless adhoc connection out in the field.
From memory enable accept LAN connections and some other options needed to be setup, then connect via local ip addresses.