every now and then my pc connects to net for no apparent reason. I can't identify any processes or applications that might be initiating these connections so can someone please help me out? I can't leave my pc on anymore when I'm not there and it's costing me a packet. I have a supra-express 56k V90/92 dial-up modem if this is any help, and running XP pro on an athlon 2000xp 1.2Ghz processor.