I was able to download the indeo code. It allows you to view csrtain types of AVI files. When you open a movie, the box tells you what type of format the video is in. Ant that 's how you know what to download to see it.
I don't know why you are having so much troubles with what seems to be a
good computer and sofwares. It's really not that complicated.
Try to download the MPG AND MPEG movies. It works almost a 100% of the times.
In general I don't know how to see AVI files, which are DIV3 format. Does anyone can help me with that?
Also What is a sit file?
Thanks