It may be an anti aliasing problem in xara try tirning off anti alias- check this thread it may help
http://talkgraphics.com/showthread.p...=anti+aliasing
Anti-aliasing improves the quality of on-screen images by inserting extra pixels of calculated colors around the edges of objects on screen. This has the effect of smoothing the edges and of appearing to improve the resolution of the display. Anti-aliasing only occurs when the Xara Xtreme Quality setting is at its highest level. For more details, see Changing the screen quality of documents.
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