When changing the display resolution controls do not change their size, but they change their physical dimensions on the screen. That happens because the DPI (dots per inch) is changing. You can compensate this by using different DPI settings. This is the way how Windows Forms controls and our controls in particular work to compensate the issue.
You can use the following steps in order to customize your DPI settings on a Windows 7 PC:
While on your desktop, click the right mouse button.
Choose the Display
option from the Sell also
Choose the Set custom text size (DPI)
Choose the desired option and uncheck the Use Windows XP style DPI scaling
for best result.
I hope this helps.
the Telerik team
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