Noticed something interesting about Starband and Limewire. When I was trying to use Limewire on Starband I was having trouble with it continuously disconnecting. It would stay connected long enough to do searches, but not long enough to download anything.
I set it up for internet connection sharing, and hooked my brother's computer up to a local lan.
Limewire works like a dream on his system, using the same satellite on a machine that's not running their satellite software, so maybe it's a problem with software compatibility.