winform is not displaying correctly when system font is set to medium

I have winform application having开发者_高级运维 a parent form with tree control on the left side of it. Each click of a tree node will display perticular form as user control in the right side of the main form. I used table lay out panels inside the user controls. Display look good in small system font. But when I change the system font to medium, display does not look good. But when I maximise the screen display looks good.

It sounds the tree control is not wide enough to handle the text. You should be able to test it in Design Mode by setting your system fonts to Medium.