I've just purchased the HTC Snap and have tried to connect it to my Windows XP PC. The PC finds the device and it's recognised as an SmartPhone USB Sync device. Windows can't find the driver. Do I:

Use the disc that came with the phone? Does it have a driver on the disc? Or, get windows to search the net for the driver? Should Windows just recognise the device?

I'm asking because:

1) I still have a few days to take it back and don't wish to open the Disc cover (it's sealed) so that everything is in the best possible condition should I decide to return it.
2) I've tried the HTC worldwide site and can't find a driver there.
3) A point ot note. I may have a service turned off that the HTC and Windows requires for the device to connect. I've tweaked this PC using Black Vipers website: http://www.blackviper.com/WinXP/servicecfg.htm

Any suggestions would be greatly appreciated.

Thanks.