I can't believe you asked him if he really needs SP2. Everybody should have SP2 installed. Your going against the grain if you don't. SP2 is also for home users. Microsoft preaches everybody to install it whether your a business or home user.

Just to let you know, I also get this same problem in the free version of Limewire 4.2.6. It is quite annoying.

Athlon64 3200
1Gb DDR 400
WinXP Home SP2