>My clients need to configure the page header of reports. They create a bitmap or a .rtf file and the report print it using Picture/Activex Ole bound.
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>I do not know why, but some of my clients are getting an strange output, report print the header with a 35% or 40% of the original size. I can't reproduce this behavior in my office.
>
>Does anybody know another way to configure personalized header output?

Try to find out what PC's, that cannot print header properly, have in common. That could give you an idea what affects printing.