Me neither. Well... maybe once, but that was becuase of my own severe stupidity. I reshacked the World of Warcraft icons, then replaced the files with Replacer. When I started WoW up... guess what happened... Blizzard (the dev company) didn't recognize it as 'authentic'. So, I had to re-install it (which to a long time 'cause it's about a 4 gig game). Then I had to download all the patches. That wasn't fun.
Anyone interested in making Flash logon screens? Check out FrontMotion login. It's an AMAZING piece of software which lets you make login screens in Flash, too bad no one ever took notice.
So if anyone here is a hardcore desktop customizer with sufficient Flash experience, please... :)