"its the videocard thats the problem"
blitz will still resize the texture regardless of whether or not the card will handle it. my radeon 9500 can handle non-pow2 textures just fine, but blitz still resizes them. then again after thinking about it i'm not sure why you'd need non-pow2 textures anyway.
as for nonsquare textures -- blitz does allow you to use them. i use 16x32 textures for something and they don't get stretched (and the texturewidth and textureheight return 16 and 32).
blitz will still resize the texture regardless of whether or not the card will handle it. my radeon 9500 can handle non-pow2 textures just fine, but blitz still resizes them. then again after thinking about it i'm not sure why you'd need non-pow2 textures anyway.
as for nonsquare textures -- blitz does allow you to use them. i use 16x32 textures for something and they don't get stretched (and the texturewidth and textureheight return 16 and 32).