I suspect your monitor resolution is lower than everyone else's. Basically, you can only design for the most common resolution that will be involved, or some intermediate value. I've read that there are hacks and 3rd party tools you can buy, but I've never employed them. I felt the prudent thing to do was to design for the common resolution, and if a user was bent on using very outdated views (like 800 x 600) because they were too proud to wear glasses or something, then I couldn't accommodate everyone and didn't try.
You can't just resize everything based on the resolution (which can be determined by code that runs on startup) because the spacing of the controls will be messed up.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.