I need some help to create a seamless bitmap fill. I have no problem creating a repeatable tile in Xara Extreme Pro 5, but when I create a bitmap copy and use that as a fill I always end up with a very fine white line around two edges of my bitmap. I have my main rectangle shape line thickness set at NONE, so I don't really understand why this is happening. I have my colour depth set to TRUE, and have tried various DPI settings from 96 to 300, and tried both anti-aliasing settings, but always end up with a similar result.

Any assistance greatly appreciated