Unknown Error

drushent

I've been using team viewer to connect to another PC running windows XP as the software i use isnt avilable for new versions of windows. Been using teamviewer for the past 6 months to do this with no issues. However today when i try to connect i get a message sayin cant connect, unknown error. I've tried reinstalling on both machines and even tried old teamviewer versions on the XP machine with no joy. Anyone able to help me out with this?