Hi,
sorry for the delay: spybot takes quite a long time to scan and i needed to wait until i didn't need the laptop for a while.
Thankfully all the problems seem to have gone. The only thing that comes up in spybot is a Statcounter cookie, which i may pick up from being on the net, not sure which site though.
I shall try removing it again and see if it comes back on its own after a reboot.