had the same problem running Limewire for a bit on Linux...

had to then reinstall win9x as needed to use specific programs
ZA just had a fit (like 500 hits an hour for the first week or so)

Reinstalled Gnotella, shared no files, and connected up for an hour...might not work perfectly but worked in this instance

I take it all the file requests failed, so the servents removed me from download list... but it is something that needs to be looked at.