Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
It sounds as if your computer is not recognizing your camera, and thus the ZoomBrowser software isn't picking it up as present and ready, either.
To check on the details of that - whether I have guessed right or not - you would need to go to
Start - My Computer
(in an older Windows PC)
in a newer PC. There, with the camera plugged in, you ought to see an icon for your camera. Double-clicking on that camera icon either ought to show you the files present on the camera (considered as a storage device, seen as a holder of files), or else let you see what the camera is currently pointed at in a little window.
(Close the ZoomBrowser software, exit out of it, at this point.)
If that icon does not show up, if there is not icon for your camera, then you need to unplug it, at both ends of the cable, and plug it in to the camera again after a pause (and perhaps, blowing the dust out of the place on the camera where the cable plugs in to the camera! dust would impede the connection), and also plug the other end of the cable in to a port on your computer... a different USB port on the computer than the one you previously tried.
Listen for a 'klunk-klunk' noise made by the computer, in recogniton of the camera.... do you hear it or not? if not, try still another USB port, and so on, until you do hear that sound after the camera has been connected for a minute or two. After which, look for the camera icon in
in older PCs) and then try the ZoomBrowser software.
Let me know how it goes, please! I may have further advice to offer, as appropriate.