No results / Slow conn on MacOS

Maybe it's just me n00bing around since I just switched from PC to MAC.
But judging on the lack of configurable settings on SLSKQT, I don't know what else I can do.
Ports seem ok, firewall is ok, the laptop is on.
Yesterday I got about 30 results, downloaded one at 10kb/s.
Today, no results, or users, or anything. As if I'm connected to limbo.
Any clues? D'you guys need any more data?