Heya
Well there were literally hundreds of windows that suddenly sprung up... I had no idea where they all came from or what they were doing! There was an MSN-messenger-style one open with an OK button but no text in, countless others that I didn't get to look into... and also a whole stack (like 10 or 20) of windows with a weird logo on the left-hand side- looked like a typical 'spy' character from a film with a hat and trenchcoat on! At first I thought it may have been Adobe screwing up (I was converting an excel document to a .pdf and had tried to cancel).. but kinda assumed quickly that something fishy was going on!
P