Resolution
To check the current build number, please do the following:
1. Start Parallels Desktop for Mac.
2. From the Parallels Desktop menu, choose the About Parallels Desktop option.
3. The About Parallels Desktop window displays the build number and Parallels version.
You can always find The latest Parallels build at http://www.parallels.com/en/download/desktop/

The latest Parallels builds are 3214 (version 2.5) and 3224 (version 2.5 for Leopard users) and build 5584 (version 3.0).
Keywords: build, number