well its had a trouble free day today from what i can tell, been no sign of the 'gateway' thing, 2 sweeps of webspider antivirus and spyware terminator with clam av have turned up clean sheets, and its booting up better now or seems to...
did i mention the other problem i was having prior? every time the young un was on the poota, i'd come back to it and when it booted up the clock had gone back to oct 13th 2005... wondering if that was a sneaky attempt by a virus to get round 'trial period' anti virus programs? fixed now anyway..
ive got everything turned on now, real time, web guard, startup checker the lot..
many thanks to dave and everyone for your help
All my advice should be taken with a rather large pinch of salt, all the gear, absolutely no idea whatsoever ;)