Sorry that was for windows. For OSX go: /Users/your_username/Library/Preferences/LimeWire

Another reason your dwnlds might be corrupt if you're going thru a firewalled/NAT environment/both. Many modems/routers nowadays se nat technology which blocks out many ports & can potentially cause corrupted dwnld packets. Anser would be to configure yor connections devices properly.

But to help you there you'd need to provide us the brand name & model number(s) of the modem/routers.