Hi all, I have been running Parallels 5 (latest update) with Windows XP SP3 (latest updates) on my MacBook Pro 17" (mid 2009) with OS X 10.5.8 successfully so far. After upgrading to OS X 10.6.7 still everything seemed to work fine until I tried to burn a CD with Sony CD-Architect 5.2. After the upgrade, CD-Architect doesnt find a CD-device connected anymore however, the CD is working nicely with other Windows applications (i.e. Media Player). I tried to remove the Upper Filter from the registry already, but to no avail. Any ideas? Regards Ulrich