I think this is the right forum for this, if not, I'd appreciate it being moved. I hope I've included enough info below, if not, ask and I'll provide additional details.

Network:
1 XP wireless desktop
1 Ubuntu 10.04 wireless laptop
2 Ubuntu 10.04 wired desktops
All updates are current on all of them.

Router: WNDR3300 - Right now, all ports are closed, as I don't want access to them from the outside. However, I've tested w/ port 5900 forwarded to the two problem machines, and coming in through my IP address, and it didn't change anything.

Success: I can connect to all the boxes, from any other machine on the network using tightvncserver and xtightvncviewer or tsc. I can "control" the XP desktop and the Ubuntu laptop from any machine on the network.

Problem: When trying to control to two Ubuntu desktops. They just do not respond, and it's like looking at a frozen screen. After clicking the menu, right clicking desktop, etc... nothing happens on my screen, but it appears to be happening on the remote machine. Example: If I click the Application menu or open a folder on the machine I've VNC'd into, nothing happens locally(where I'm sitting). However if I get up and walk to the machine, I can see on the desktop the things I've done(open folders or if I left a menu open, etc..)...

The 3 Ubuntu machines have exactly the same vnc programs installed on them, and I just can't figure out why this is happening. FWIW, the same thing also happens when I use Ubuntu's "remote desktop" program. I have tried all 3 protocols under TSC, w/ the same results(VNC, RDP, RDPv5). As one final test to try this, I downloaded the free version of TeamViewer, and put it on my Ubuntu laptop, and the problem desktops. Using Teamviewer, gives me control of the problem desktops.

On one of the Ubuntu PC's, I have Virtualbox installed, and XP as a VMachine. I set up Virtualbox to call for it's own IP address from the router, and installed TightVNC inside Virtual XP.

I can control the Guest XP on that PC, but not host Ubuntu..

I hope that is clear enough, I'd appreciate any insight as to what the problem could be.

IGF