Lately I've been having problems with Movie Maker.

They are:

- Videos appear green whenever they are split, even though I still hear the audio

- Videos have a strange wavy/scratchy look to them when they are put into the editing screen and don't appear even after saving the file.

    - Example: https://www.youtube.com/watch?v=fZcZqB348wc&list=UUZaurq9hHX4jF9nUuei9FWg 

All of my videos are shot in HD1080 on my camcorder and saved in a HD format but still appear in low quality (see above link). I used a converter to put them into an MT2S format and the problem still persists.

I am VERY technophobic and know absolutely nothing about specs, codecs etc so please please please be very descriptive in all suggestions so I can sort it out ASAP (I make YouTube videos so I'd rather get it done sooner rather than later).

PS. Up until this time last year I'd been using an older version of HP. WIndows 7 but I'm not sure the exact model/product name/ number but using the same camera Movie Maker never had these problems and ran smoothly and the videos came out perfect.

PLEASE HELP!!!