Bearshare Download Speed Constantly Changes

[xenoglott]

I´ve been using Bearshare for a couple of years and never had this problem. When I download any files (currently, MP3´s), the Bandwith Total In/Out changes every second like a clock (for example, right now it goes 49, 31, 183, goes blank, 123, etc...).
Never had this happen before.

Here´s the info that may help resolve:
OS: Win XP SP2
Modem: DSL
PC: Compaq 664mHz, 192mg ram, celeron
Antivirus: NOD32 - set to allow Bearshare on AMON & IMON
Firewall: Bearshare is an exception
Router: Bearshare Ports 6348 have been opened for udp & tcp
When: Happens during every hour of night/day/weekend/weekday
Bearshare Version: 5.1.0b25 (beta version - recommended to solve this problem)
Bearshare Settings: Broadband, allow 4 files at a time, 10 connections per file, total of 40 connections.

Thanks for any tips that might explain this!

Xeno