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VNC 4.0 Documentation
Introduction
You might like to start by reading a basic introduction to VNC and how it can be used.

If you haven't done so already, you probably want to download the latest version, and read the release notes.

Then you might need some help getting started.

If you've got problems, try the FAQ for some of the most common questions and problems. There are also some pages to help with troubleshooting.

There is also a list of known bugs and features for Version 4.0 here.

Another great resource for troubleshooting is the mailing list archives, which you can search. It's been running for several years and there are tens of thousands of items.

VNC for Windows Documentation
VNC for Unix Documentation
Other Documentation