trouble in paradise

My computer is NOT happy, so I'm borrowing Alex's just to let all my followers know that I won't be blogging until I figure out (and then fix) whatever the problem is.  For some reason I can't access Mozilla Fireox, although I CAN receive and send e-mail. Strange but true!  Both Tom and Alex can access the 'net, so we DO have service to the house (and router.)  Have also tried other browsers, such as Google and Windows, but they won't open either.  Sure hope it's not a virus!!!