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strange texture coordinates and render to texture

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hi everyone. I've strange problem with texture coordinates and render to texture feature - when rendering in normal mode (into framebuffer) everything is fine, but when I enable render to texture each object has mirrored T coordinate (newT = 1 - oldT). The problem only occurs when model was exported from 3DS Max - the texture has coordinates in range [-1, 2] instead of [0, 1] becouse of max texturing. I have no idea why (and especially HOW ;/) these coordinates can be affected by creating off screen render target, rendering to it and rendering a screen quad with a render texture applied to it. Has anyone had a similar problem before? Help please :)

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