Thank you for your interest in our controls.
Yes, indeed, this is an issue with RadRibbonForm when used on Vista, which we are currently researching. We are sorry for this problem, we will address it soon.
I would suggest using the ShapedForm
for now - it should show the ribbon correctly.
Do not hesitate to write me back if you have more questions.
All the best,
the Telerik team
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