:headbang: :headbang: :headbang: :headbang:

I solved this thing... argh..

the problem was the mayas new "high dynamic range image preview options" attribute and its plugin that is found at file node

the problem format was tif 32bit .. maya can not read it with out this plugin so I had to turn it on.. and that plugin opened
this tif in a way that it can not be overwritten.. huoh

so I`ll be using hdr ... argh.. it took me a week to solv this