Important notice for all those of you who haven't moved over to RTM (Release to Manufacture - Andy :-)) code, your pre-release versions have now expired. :-( Sorry!
You should have been receiving notifications for about 2 weeks now, however, from yesterday, the 31st May, you will notice some different behaviour on your machine. The main change is the fact that your machine will now only work for 2 hours, to allow you to retrieve your data. As soon as that 2 hour mark hits, the PC will automatically reboot, without providing you with the opportunity to save data. This 2-hour limit will run until around the end of August.
You can easily upgrade from the pre-release versions to the final RTM version, and the information is provided in this table below:
You can find all the information you need here: http://www.microsoft.com/windows/products/windowsvista/preview.mspx
There is also an FAQ on the Vista Team Blog, here: http://windowsvistablog.com/blogs/windowsvista/archive/2007/04/24/windows-vista-beta-2-rc1-and-rc2-set-to-expire.aspx
I recently got a Technet Plus subscription so i scratched my test machine and re-installed with Vista Ultimate
I had a feeling the expiration date was coming up but didn't quite realise it was here! Where has the first half of 2007 gone?!
I completely agree! It doesn't seem 2 minutes since Santa was here! :-)