Hopefully someone will know the problem to this printing queery as its driving me nutz >

Scanned a picture and set the sizes to 270mm x 183mm saved to file. easy so far huh
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well, when I go to print and using XP it gives me several options on what sheet/photo to print to but its never the size that I saved the picture and I dont seem to be able to find out how to print the correct size

Any help would be greatly appreciated 8)