FBO dimensions limitations on ATI

What are limitations for FBO dimensions on ATI?

I tried rendering to 319199 texture and resulting texture looks like shuffled puzzle screenshot
With 320
200 everything is ok - there must be some limitation on texture size (multiple of 8?).
glCheckFramebufferStatusEXT( GL_FRAMEBUFFER_EXT ) returns GL_FRAMEBUFFER_COMPLETE_EXT in both cases.

Card: RADEON 9550, driver - 5.7

Each texture dimension should be a multiple of 32. It is a known limitation/bug that has been fixed, but the fix will be a little late (Catalyst 5.9).