Jody Garnett has just used the udig 1.0.3 uninstaller and to his dismay discovered that it is pointed at the Program Files directory and as a result it deleted everything in his Program Files directory.
As of September 30 6:00 PST this problem has been fixed.

The good news is that we have learned that approximately 1500 users have downloaded udig1.0.3.exe!

To avoid destruction you can:
1. Download udig1.0.3.exe and install it. It will change the unistall target to the correct folder.
2. Wait for udig1.0.4 (out next week) and install over top of 1.0.3.

A very, very big and sincere apology from the uDig team.

The following screen shot shows the wrong directory and the unistall should be cancelled.