I've done this numerous times with this computer (Dell, Windows version 5.1 sp2), but with my old computer (compaq, same version of windows) i had absolutely no trouble. Here's what happens: I download Limewire and it installs fine. I use it to get songs. And then, whether I shut it down or not...anywhere from a few hours to the next day later, Limewire is simply...gone! The icon sometimes disappears from the desktop, and sometimes looks like a blank file (no lime pic, just something white there). If I do a search for it, computer sometimes finds it part of it but it won't open. And sometimes the computer can't find it at all. Then I go back to limewire.com and reinstall. When it comes back, there's my songs, my library, and everything like I left it. This is frustrating me beyond belief.