I've been using the Adobe Design Premium CS5.5 for years. All of a sudden the Dreamweaver program won't launch. It looks like it's going to, displaying the opening splash for a few seconds, but then it disappears and the program doesn't open. (The other programs in the CS5.5 suite work fine, i.e. Illustrator and Photoshop).

This seemed to occur just after (or in the middle of) a download of files from server using Dreamweaver. I've tried rebooting, and I've tried to launch it as Administrator but neither works. Any help highly appreciated!