This dialog should fit without any problems.
Is it possible that you've reconfigured your Windows screen to make text larger? Right-click on the desktop and select "Screen resolution", then click on the link "Make text and other items larger or smaller". On the next dialog select "Small - 100% (default)".
You need to log out and back in to make these changes active. Are you still running into problems with the dialog size?
Karl Heinz Kremer
PDF Acrobatics Without a Net
PDF Software Development, Training and More...
http://www.khkonsulting.com