hi - i'm having an issue where mental ray doesn't seem to be updating my targa textures files. when i hit reload they update in the attribute editor and on the model, but when i render, mental ray just renders the last texture.

i'm getting the error:

// Warning: (Mayatomr.Shader) : mentalrayTexture1: referenced writable texture file "C:/temp/sssMarleyTest" already exists, overwrite //
// Error: (Mayatomr.Output) : file error: C:/temp/sssMarleyTest //
// Error: (Mayatomr.Output) : file error: C:/Documents and Settings/arran/My Documents/maya/projects/marley/sourceimages/NEWHeadHandsCOLOR.tga //
// Error: (Mayatomr.Output) : file error: C:/Documents and Settings/arran/My Documents/maya/projects/marley/sourceimages/NEWHeadHandsBUMP.tga //

but the maps are all there.

help!