I was having the problem with limewire not opening, but I fixed that. Now it's been about a week and limewire will open and I get the pop up to upgrade, but I cannot view the browser. It still shows as being opened in my system tray. I have no idea what to do. I just minimized it one time, and it wouldn't come back. I've reinstalled, and the browser still won't show. I appreciate the help in advance.

Try deleting your LW preferences folder whilst LW is closed; instructions here: Fixes for Limewire
By the way, have you updated your video card drivers recently?
Which version of Java are you using?

I deleted that folder, and everything is fine. That's twice this forum has helped me. I appreciate it.