Annoying Pop Up, need guidance...
 

Everytime i start up LimeWire... i got pop up with the following message:

"LimeWire was unable to write a necessary file because you do not have the necessary permissions. Your preferences may not be maintained the next time you start LimeWire, or LimeWire may behave in unexpected ways."

What is the cause of the pop up? Anyway to solve it?

Currently using the latest version 4.9.28. Downloaded the latest Java software as well.
Running in XP service pack 1
Norton Internet Security and Antivirus are installed in the PC.

**But i remember previously I don't encounter the pop up. But got no idea why or how the pop up started.