At one point there was a driver for bluetooth (Version 3.00C) that included a firmware update that could possibly render your bluetooth card unusable. There was a huge post about it on the old forum and even though it did not occur with all users (including me), the threat was real. Since then, HP has been much more cautious about their releases and the current release (Bluetooth by HP Version 3.00B (http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?lc=en&lang=en&cc=us&os=228&product=426796&dlc=en&softwareitem=ob-24183-1)) is very safe to use. They have removed the firmware update entirely and just implemented the features in software.
I would not be afraid to install this driver and I would recommend it as I have found the integrated Windows driver to be very lackluster at best. Most times I could only pair with it once and then I would need to restart the computer. Since switching, bluetooth has worked flawlessly.