Does anyone know why LW 4.9.37 Pro Freezes the Machine...

I have a Powerbook 1.5ghz, Tiger 10.4.3, Java both 1.4.2 and 5

everytime i start limewire and do a search it completely freezes my computer + other apps for ages... I try and force quit, and even the force quitting takes ages to appear.

Basically everything that is open when LW is doing its freeze completely is unusuable.

I have tried running it on both Java versions and the same happens on both....

Does anyone know how to fix this or is having the same problems??