I use Mplayer2 Mencoder to encode videos off our CCTV system. Anytime I use explorer to browse the folders (local or on LAN) where I have these files, ekrn.exe goes to 100% for about 10 minutes. Explorer is locked and the computer is almost non responsive. There is obviously something wrong here. This might be related to machines with Nero OEM with nevideo.ax on them. Per FileMon eSet is looping scanning nevideo.ax and scanning the video file. If I right click on the file, I am locked up for 10 minutes. Then that explorer.exe window disappears which I had right clicked upon one of the AVI's or just browsed to. If I remove nevideo.ax this specific problem goes away immediately. The program is c:\program files\common files\ahead\DSFilter\nevideo.AX The latest version of Nero doesn't cause this problem, but before I purchase a $100 Nero I'd replace NOD or backrev to 2.7. Nero InfoTool results in the same lockup even with nevideo.ax removed. Another person with Nero here has same issues. Another with a newer version does not have this issue, but still has lockups with other explorer enhancements such as Notepad++ (me too) Acronis Backup, and Symantec Ghost Backup prior versions. I am running Nero 188.8.131.52, startsmart 184.108.40.206, nerovision 220.127.116.11, InCD 18.104.22.168, PowerDVD 5.0.1107 I've uploaded a sample AVI (FMP4 codec required, or use VLC) here; http://www.acmenews.com/08-04-18.avi Again, requires Nero 6 (OEM) to reproduce the problem.