took their advice and ran a wee regedit prog they directed me to
then installed and ran Rkill, followed by iExplore, then full scan via MalwareBytes
this was followed a full scan via MSE..
this turned up a couple of rogues in the Creative folder.. I just deleted them completely..
also deleted a couple of entries in the msconfig start-up, which look as though they're designed to exe as soon as Internet Explorer is opened..
- this Trojan is a nasty little beast, and quite persistent, too..
- thanks should go to bleepingcomputer for providing a solution..