Hey bartjr, do yourself a favour and follow my instructions, ctrl+alt+delete>processes, look for a bpk.exe, if that is in processes than click terminate process and search perf keylogger removal, not entirely sure but i think ardamax is the basis of perf keylogger.
Edit: This goes for everyone too. Those keyloggers can slip through even the BEST anti virus programs, and even though they are in the virus vault or removed from system, they can still log your strokes over the keyboard.
Found W32/Dropper.CJ!tr (probable variant)
Norman Virus Control