Should a forwarded query get a follow-up?

So, my query to Agent A gets a response of, "my client list is full, but this sounds awesome and I'm forwarding it to my colleague, Agent B." I say thank you.

Almost three months later, I have not heard anything from Agent B nor have I queried anyone else at the agency, even though I have a new manuscript that's ready to go. Do I follow-up with Agent B or simply assume that I'm getting the "silence means no" treatment and send the query for the new novel? And in the latter case, do I mention the old query at all or act like the whole thing never happened? (Important note: the old query was just that -- a query. The submission guidelines specified no pages.)

The submissions don't state if I should expect to hear a reply or not. Agent A has send in interviews that s/he responds within a month.

Thanks for the advice. I'll probably do a follow-up and mention that I have another manuscript. At least then I won't sound like I've been doing nothing except refreshing my inbox for ten weeks. ^_^;;