Brand new Sony Vaio L Series straight out of the box. I can't remember details, but I must have just clicked "create new connection" or something, and entered the router's security details (the router and other computers are years old - only this new Win7 is the problem).
So, I don't know how to check/answer your question, sorry. If you can help me check it somehow - where do I look?? It would be appreciated, thank you.
EDIT: I've just noticed that the ICON on the message popup window is the same icon as on other VAIO SMART NETWORK windows.