Trouble with camcorder driver

[Bad^Hat]

So I'm trying to hook a camcorder up to the PC via USB, but it's giving me a bit of grief. The manual says not to connect the USB cable to a PC until you've installed the USB drivers from the disc, but of course I've already hooked it up, being as over-zealous with hardware as I am. Windows seems to have installed it's own drivers for it which don't seem to want to come off, and whenever I run the drivers on the disc it tells me "USB equipment operates with the driver installed as standard. You do not need to install a driver." Fair enough, but if that's the case then why won't the bloody thing work?

I'm running on WinXP Pro, the camera is a Panasonic NV-GS75 and the program I'm trying to use to extract the video is MotionDV Studio. Any ideas?