Any GIMP users here? (Help needed)

[Paul.Saenger]

Hello my fellow subsimmers.

I have spent the whole day yesterday trying to create a .gif image out of some screenshots I took from a DVD.

So here is what I did. I took the screencaps (which where in the .png format), converted then via GIMP to .jpg files and saved them.

Next step I opened the first imaged and added the others as layers. Then I saved the whole thing as a single .gif file, also via GIMP.

Now, there is a small problem. The pictures all appear blocky and look quite surreal. You can hardly identify a single face anymore.

Can anyone help me out here? What did I do wrong?

Your help is greatly appreciated.

Thanks,
Paul