Any chance you changed something with your Internet connection configuration?
(router/ISP) you have second computer on the network that you can test on?
Any way try "teamviewer" it is much better.http://www.teamviewer.com/index.aspx
No I haven't and it works on my laptops. Thanks but I'm not asking for an alternate program, I'd rather not have to have someone download software every time I need to give them a couple of minutes of help.