I need some help -

Since switching from standard Limewire to Pro, I get the "one bar".
My system specs -
> Windows XP Home Edition
> Norton Internet Security
> Cable Modem
> Netgear wireless router
> Latest versions of Limewire & Java

I ran the standard Limewire for over a year without any problems, but when switching to Pro it only gives me one bar. I haven't changed any hardware.

Can someone help? Thanks