XP and digital cameras

> I have a digital camera and a palmcorder with a digital camera. Neither
> will download their pictures into my XP. Both say the same things. In
> the photo program that came with the camera, a window says there is no
> pictures in the camera, but there are several that I can view in the
> camera itself. I use a USB port, and sometimes a window says that the
> camera is not hooked up. I uninstalled the driver and reinstalled it
> again, with the same results. It works as a live room camera, and when I
> plug in the USB it makes the sound like it connected to the computer,
> but the display window on the camera goes out at that point.
>
> Anyone know of a way I can get my pictures into my computer? Thanks.
>