[RESOLVED] Win 7 doesn't see camera

[foxy]

Camera is Canon A620, computer in my sig.

I've been transferring photos to my computer with no problems, no special software, but starting last week, camera isn't detected.

--Win Explorer has an extra Removable Disk J, which has to be the
camera, but when I click it, it tells me to put a disk in. All other disks
are accounted for.
--Computer>Management also shows Removable Disk 1(J) a "USB Mass Storage Device" with "no media."
--I've bought a new USB-Mini cable ($15!)
--I've plugged it in through rear and front USB slots.
--I've tried it also on my a Vista machine, with both cables.
--I just installed Canon Camera Window, software which is supposed to
transfer the pix, but it says it doesn't detect my camera.

I've explored this on the web, but I don't see anything I haven't tried.

I was just thinking: can I go into Device Manager and point to a file somewhere in the system as a new driver?