It sounds like it didn't give you a location or name for the file? Without that, you won't be able to tell whether it's a dangerous file or simply a false positive (something that it thinks is a virus but really isn't).
I recently returned from vacation, and when I got back I had a new problem with Gmail I haven't had before. I can't connect to Gmail chat at all. When the Gmail chat window tries to load, I get a message saying "Unable to reach Gmail.