http://img844.imageshack.us/img844/2908/giht.jpg

That is like that in all my caves that i believe is some form of ice or something. but its pure white.

its just annoying. I've used 3 different cave and other texture replacers, but i cannot seem to get rid of it. What may have gone pear shaped frens?

That featureless surface means that no texture is loaded. I don't know what could be causing it based on the info you've provided. It could be corrupt texture files, but you say you've tried installing different texture replacers. Then the problem might be related to the models themselves or something.