I am having a very annoying problem with Limewire. When I exit the program, a new one opens itself right away. What is causing this, and how can I fix it?

Please help! I'm about to give up on the program all together!

Sounds like you have a worm. There's a fix here to try, it's worked for a lot of people. Click on the link below.
The easy fix for Limewire popping up every few seconds (try this first)
And more info here: WARNING: Viruses on network you should be aware of!

If you still need help, try one of the sites below...they're more specialised in helping with malware issues.

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Malware Removal - MajorGeeks Support Forums

Always make sure that you're using a good AV program. Keep it updated & use it to scan all files that you download before you open them.