Try playing them through WMP or itunes...Disable the limewire player and make WMP or itunes your default player...
To disable LW player go to Tools > Options > Player and untick the box and select apply...
To make WMP or itunes your default player
Go to your shared folder (outside of Limewire) you will find this folder by clicking on one of your files in your LW library and clicking explore...
Right click on one of your MP3 files
Select open with
Select choose program
select WMP or itunes
and tick the box that says always use this program to open this file type
Select OK
Also make sure you always scan your files before playing them, you can do this by right clicking on your file (in your shared folder) and select the scan with option...
