Screen Sharing issue with VNC from Mac to PC - Black Screen

I have a Mac mini at my place of work. From it, using the built-in VNC capabilities in Leopard, I am able to successfully VNC to any Windows-based PC. I have a Mac Pro at home that tomorrow I am taking to my office. From my home I VPN into my office and want to VNC to my computers from the Mac Pro sitting at home. VPN connects just fine and when I attempt to VNC, I get a response from the computer at work and am prompted for the password and then I get connected. The problem is that the VNC screen is black. I can see that I am connected to the right computer because it's name is at the top, but there is basically no display. Tomorrow the Mac Pro will leave my home to be placed in my office. However, I am going to get an iMac for my home and need this functionality. I anticipate that I will have a similar problem with the iMac and would like to get it fixed now. Any thoughts on why I am seeing this? BTW...VNC works fine using Chicken of the VNC on my old iMac G3 running Panther over the VPN.
Thanx...Jon
Message was edited by: jhyiesla

I have the exact same problem! I can connect using RealVNC viewer, but, on Leopard's in-built Screen Sharing app, I can authenticate, and see the computer name on top, but, there is simply no display! I have opened all ports on my router, and completely doing away with the Leopard firewall also doesn't seem to help!
Any leads yet?

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Message was edited by: DocturKnowles

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