If you're a Mac OS X user (10.2 or greater, I believe), switch to Acquistion. It's pure Mac OS X, uses the Limewire networks, IS FAST, and checks for corruption but never reports corruption (and suprisingly, all files work fine).

I HIGHLY RECOMMEND IT OVER LIMEWIRE PRO 2.8.6. Limewire just can't match it as a Java application on Mac OS X. This is my opinion.