"to add new unit or building, you need make tga graphic of your new unit. and copy of same unit in bmp file" What program I need to make tga graphic to the new unit ? I think I will use for one new unit to old from the game, haw I can do that ? To mix their graphics ... "and copy of some unit in bmp file" What that means, to replease may graphic with the old (of one unit)??? Haw I can get some BMP files of the units in Dune 2000 (tga graphic ) ? Haw I can get some image of unit from Dune 2000 from data.r8 files. Tell what program for what I need ... For the problem of r16 files, I have to search for a program that can open them . For AI will be later . For the problem you have it is probably the compatibility of the game or som driver options (graphics settings)...