Today I tried figuring out why I could not connect to my computer at work via Remote Desktop. I opened the control panel, typed "remote". The first offered item then is "Allow remote access to your computer". Clicked and got the following:

Recognized the yellow exclamation mark and the "You must enable the Windows Firewall Exception for Remote Desktop"? A click on that link opened the Vista Help and Support Window with the topic "Use Remote Desktop when Windows Firewall is on" which explained step-by-step how to enable Remote Desktop in the Windows Firewall.

I'm working with Windows for years and I would have figured this out by myself. But with hints like this anybody can solve these types of problems. It's these small things which make the difference between good and great.