With version 4 I'm having a few new problems. First when I try to use the merge folder option, it wont load correctly and says invalid file. For example. I have 2 hard drives both have a folder called movies. C:\movies would be my main drive and D:\movies would be my secondary drive. When I add a movie to my secondary drive it will show up on mezzmo as a blank folder and will say invalid file. If I take the same video and move it over to my main drive it will load up into mezzmo with no problems. All the video info will show up normally.