Just a heads up on problems I'm having, will let you know when it's resolved.
Running Nero Ultra 7.5.7.0 on a fully updated MCE. Initially all runs well. I associate video files with Nero Showtime (I like the spacebar pause). Do a few burns. Now I try to run a video file. Nero Showtime bombs with an uninformative error - Unable to update graph. Now all files with a video extension cause MCE to throw a 0xc0000005 error. Even if you click on the file to highlight it, it throws an error. Apparently some damage to the registry. The only solution thus far is to do a System Restore. I've run through this scenario twice, so it's not a one-time fluke. Nero has been informed. I don't have this problem on 2000. Currently using WMP only and haven't burned on that system since the last restore. Will definitely not be using Showtime. Fingers crossed and waiting. Steve