I've recently switched form Zone Alarm to Mcafee personal firewall and am noticticing lots of attacks from other plusnet customers, mainly on ports 445,135 and 6881. Is this normal and if not is there anything I can do about or should I just ignore it?
Thanks in advance
It is normal and is refered to a 'internet noise' that everyone gets to some degree. It is other virus infected systems trying to propogate infections to other PCs.
Nothing you can do so just ignore them unless they are causing a slowdown on your ADSL connection (which would involve 1000s of connection attempts/second/minute refered to as a Denial of Service (DoS) Attack).