I've got a bit of a problem, when i put a video into windows movie maker (length 23:04, File size 85mb, File type windows media audio/video file) it cuts it down to 1:25 minutes. The same video works perfectly in media player, does anyone know how to fix this?

I'm not sure I've had that problem in the past, sort of.

It could just be an internal issue with the codecs that are installed on your system.

The codec could be compatiable with Windows Media Player and their could be some sort of internal conflict within Movie Maker which is causing this error.