There's an "Advanced" button on the Windows 7 display dialog that offers the tick box to "Use XP mode". This needs to be turned off for the scaling to work properly. Your choice is not remembered and has to be set each time. If Steve is seeing text that's too large and is getting clipped, then this option has not been set properly.

The Large Font support under Windows 7 is supported in everything except the "Print Preview" mode in the Forms Designer. We're trying to discover why this isn't working properly, and when we do it will corrected in a Service Pack. Printing works fine.