Umm Ok??? Bearshare stopping internet connection

[canadaXD]

I had bearshare with avast before... Not with 5.2.1 since it stopped trying to update, but now i have Kaspersky IE security with the firewall turned off (as its annoying) and everything else turned on and the scanners (file scanner, web antivirus) set to high. But I open bearshare and I cannot connect to the internet, I got logged off of msn. Cuz i couldn't get on to the internet for a while and only 1 of 10 downloads actually was working even though there were plenty of hosts, I closed bearshare and wam, internets fine and I automatically reconect to msn. Strangely enough my frostwire works fine. And i'm downloading the same files easily. Any ideas???