Why do my groupbox sizes change depending on platform?

[Guest]

I am having a problem with layout rendering changing size depending on platform. I have developed an internal WinForm app designed to run on a platform with a minimum resolution of 1024x768. The development platform has a higher resolution, however putting it into this resolution to check the layout works fine and everything looks as expected

However, I am discovering that other platforms, such as my Compaq Tablet PC renders things such as groupboxes on the form containing controls at a much different size than expected, with controls that SHOULD be visible no longer accessible and there is no horizontal scrollbar to get to them.

This occurs even though these other systems are at an identical 1024x768 as my development system and so I expect my form to look exactly the same

This, of course, is unacceptable and causing me a great deal of grief

Does anyone have any idea of what I should do to solve this?

 

[Herfried K. Wagner [MVP]]

I am having a problem with layout rendering changing size depending on
platform. I have developed an internal WinForm app designed to run on a
platform with a minimum resolution of 1024x768. The development platform
has a higher resolution, however putting it into this resolution to
check the layout works fine and everything looks as expected.

Does the other machine use another number of DPI?