[Solved] Strange texture problem :S

[nkmol]

i've got a really strange problem that never happend before :S
when i attach my texture to my model, everything looks good. but when i want to render it, it is al purple :S



also i noticed the model create automatically a .mat file, but already got my own.
this is really odd, i've never had this problem before...
btw when i want to delete the extra .mat file and render it, i see nothing. when i wait some min and render again its pruple again and the extra .mat file is back