Well, I hate to hijack the original poster's problem by talking about my machine, but running that risk...

I run LimeWire with about twice the RAM it asks for if I remember correctly, and as I said, I generally play things on SoundJam. I don't have a problem with cutouts but I do get bad files with cut off ends, blurps in the middle, level changes, parts of other songs, etc. in them all the time.

I don't think it is Limewire or my machine, I think it is poor encoding at the source.