I installed you german Nero 7.5.1.1 Lite on a german Vista RC1 64-Bit System and it seems to work! Thank you for your installer! The original one points out, that this release is not compatible with Vista. And after installing with my own .msi installer it did not work always, but with your installer it seems to work! I've testet BurningROM, Express, CoverDesigner, CD/DVD Speed and DriveSpeed. No Error.