Laptop not recognising my USB cable to camera?

I bought my CASIO EX-Z9 from Belgium about three years ago. I've never had any issues with it until now. The pictures are on my camera and viewable etc. but when it is plugged in via the USB cable, I have two things that will happen. Either, the "Removable Disk" does not come up, or it will come up, but it is empty. I have pictures on the card but they will not show. What seems to be happening now is that, if there is a card in the camera, the removable disk will not appear. However, if it does appear it says it needs "formatting" which will erase all of my pictures from the card. I remove the card and then plug the camera back in, but now the "removable disk" does appear, but the format thing won't. I've tried re-installing the CD-ROM that came with the camera, but has had no effect on the laptop recognising the USB cable to the camera. If I plug the camera into another USB port of a different computer, it will work as normal and I can upload my pictures, but I don't want to have to use another persons computer. I want to use my own laptop. I know it isn't the USB Cable or camera that is faulty because they were in perfect condition and work on other computers. Yet I know it's not my laptop that's faulty because any other device with a USB Cable IS recognised by my laptop. Someone help me please, I need to be able to upload pictures from my camera for my GCSE Art Coursework!!