Maybe this isn't the right forum to ask this question, but here it goes. Whenever I boot my vista machine, right after login there has been an extended delay until the actual desktop appears. I also noted recently that my other machines on the same network... their antivirus firewall is reporting that there is a broadcast of TCP traffic on port 139.
I've scanned my machine up and down for viruses, but haven't been able to find any. Could anybody think of something non-malicious that could be causing this? Is this a particularly well hidden rootkit?