Well, the short question is: does anyone know what this is? I've found it attached to various emails and, on the odd occasion my curiosity got the better of me, I opened it in Windows Picture Manager or whatever and found a square .jpg of exactly what it says on the label - a cream-coloured faint grain background ... so assume it was simply a letter background maybe used by the sender. However, a recent mailing led to a response from a friend saying that, when she tried to open it, information relating to a porn site was displayed. So the longer question obviously has to be whether my machine is infected with something or whether this attachment is as innocuous as it appears when I open it myself. For reference, my email provider is IncrediMail but I can't find any information about this on their Help Center either. A Google search reveals the existence of this strange little attachment but, from what I can see, no-one else has either identified it or reported any 'nasty' attachment, apart from my friend.