Mac - connection keeps dropping off
 

I have a Mac - 9600 233mhz, running OS8.6.
Once connected Limewire connection fluctuates by the second. One second I have 147 hosts, the next one, the next 34, the next 1, the next 89.
It's impossible. And it's been like this from day one ( a month ago) despite reinstalling Limewire three times.
I run a clean ship so there's no reason why the program should have problems.
Any clues....?