Vista - Windows Movie Maker problem

I have recently been working on a movie for my friends wedding. Everything has been working fine up until recently when I have began having problems with the photos and music matching up. The problem is quite strange. If I click on a particular photo at random the music matches up just fine, but if I start the movie from the beginning it no longer does. It is a very strange problem, but now everytime I have to edit something I have to do it by starting from the beginning of the movie to see if it editings correct, as you could imagine its getting quite annoying. Didnt know if anyone else has run into this problem; any advice would be greatly appreciated.

i faced that problem before...... the music and pictures is quite strange... when you pause it, to match up the pictures and video in the timeline its looks fine but when you start at the begining the pictures/video didn't match-up...

THE ONLY THING I DO TO SOLVE THE PROBLEM IS TO FREE UP THE DISK MEMORY

I had noticed that the memory is the problem becuase after i put too much video and music on my computer the problem occur...

TRY TO DELETE UNNECESSARY PROGRAM THAT USED TOO MUCH MEMORY AND TRANSFER THE SOME VIDEO/AUDIO FILES TO THE REMOVABLE STORAGE (CD OR USB FLASH MEMORY)

_______GOODLUCK_____ I HOPE THAT CAN HELP______