My textures that have been placed in the model's surface gone to be Semi-transparent!! but it wasn't seems to be the normal semi-transparent...it was some kind of error while rendering texture that occured after I have used Bevel tool.....I read some information, found by searching in Google...it said that ,this kind of problem caused by the bug that still has not been fixedin Bevel tool.....if it is a bug why don't the Maya's programmer fix it.....Can anyone tell me please....what is the real thing that caused this problem and how to fix it T_T.....

PS: My version is 6.5