If you are currently running any flavor of Ubuntu version 6.06 and desire to upgrade to version 6.10 and are running vnc4server with resumable desktop sessions, you need to know that this functionality will break. Instead what you will get when connecting to the linux machine removely is a grey screen that looks like this …

“Argh” you say … Well, the solution to fix this problem is to simply downgrade vnc4server to the version before the latest one and the problem should be resolved (has worked for most people with this issue so far). Do this in the gui interface on the machine by going to Applications > System > Synaptic Package Manager, find “vnc4server” in the long list of apps, elect it, then while still in the Synaptic Package Manager, go to the menu Package > Force Version, and you should now have the ability to downgrade vnc4server to the previous version. Apply the change, restart, and you should be back to square one (theoretically). If this doesn’t work, there is another work around I figured out, but it is a bit more complicated.