I've had another good look in msconfig & found a startup item called NVCPL - rundll32.exe c:\windows\system32\nvcpl.dll,nvstartup & have cleared this out before, however it always comes back. There are 3 entries now (all unticked bar one) I can't see a /L:ENG or anything similar at all in the startup.
Having unticked almost everything in here now I can't for the love of me see what's bringing up this window.
Thanks for all the help on this. It is very much appreciated. John