Go to device manager once you have the drive recognised by the operating system, locate the ide channel the drive sits on and right click on it, select uninstall and reboot, windows will reinstall the ide channel drivers and all periphials connected to it (i.e. your writer) uponj reboot. This serves to reinstall the drivers should any be corrupt.
Be aware that:
Pioneer have released an important firmware update for this drive, could possibly be the cause, the update adds support for more media but also improved compatibility with more systems. I know this from a previous thread for which i emailed pioneer to back up my case for flashing the firmware (which I didn't have to do in the end), the update iteslf is quick and painless but also runs from windows, make sure the os recognises the drive first and there are no yellow exclamations next to it in device manager. click here