Any AVI file from any source, causes an error message sayin Windows Explorer needs to close, even if I just click on it once. A colleague has said my codecs could be messed up and I need to remove them, and re-install. Also remove the registry entry for Windows Media Player that opens avi's. What's the best way of going about this. I have recorded TV programs, which are Mpeg, and need to turn them into AVI, to then convert them to play on my portable media.