I installed the MM_debug and DbgView.
So, I am waiting the error.lol

As soon as I have something, I will post it.

Thanks for your time and help.

I do this all the time and I can't reproduce. It would be helpful if you can send a debug log (step 4b) capturing this to support: http://www.mediamonkey.com/forum/viewtopic.php?f=7&t=69

Hello,

1.[b] Description[/b]: After changing from Tab1 to Tab2 then return to Tab1, a nice pop-up appeared with in the message "List index out of bonds (10)". After clicking "ok", the pop-up appears again and again until I shut down MM4. After restart, no more problems with this issue but my colums were mixed :s

2. [b]Environment[/b]: Windows 7 family edition premium 32bits, Pentium Dual-Core CPU 4200 2.00GHZ, 4.00Go DDR2, 1 dvd reader, MediaMonkey 4.0.3.1476

I do not know if that can help for the development...

Thanks