i have been creating some new materials and have hit a sporodic problem. sometimes, as i'm saving a material, the values in the 'edit texture' dialogue change at random. most often it is the scale but sometimes it can happen to the rotation and offset.

i'm getting somewhat frustrated as it means that i lose the material i've created. i've tried both saving before and after i apply the material to an object but that doesn't appear to make any difference.

i was wondering if anybody could please help me before i end up completely bald.