I just tried to start LimewirePro and firtst off noticed that the usual icon had changed to a generic windows icon and when I clicked on it got a window saying that limewire.exe could not be found and when I did a manual search couldn't find it anywhere.....What has Happened!!???

I just used it two weeks ago and everything was fine.

Is there a time limit on its use...Do I have to shell out more money to get it back?

Help.