No 1024 size textures? Mipmap drops back to 512

HiI have the following problem:I made a ground texture using a 1024 x 1024 texture. Making the textures 256 colours, the whole 1024 pixels are showed. But as soon as I let the colours at 16Mil and convert the image using DXTBmp, it seems as only the 512 pixels mip is loaded, the pictures looks very blury and .. yes 512 pixels style. Any chance to force FS2K2 using the full 1024 texture?The error appeared after I reinstalled my system with WinXP.ANY HELP IS APPRECIATED!THANKS in adcance & happy holidaysMario