Unfortunately, it will be hard for us to help you based on only the information you have provided. Would it be possible to share more details on your setup? What approach are you using to embed the Print Preview functionality?
There is an example on how to set up Print Preview with RadSpreadSheet
in our SDK Samples Browser.
Another approach is available in the Print and Print Preview
demo from the WPF Demos Application.
Are you using any of these? Is it possible to isolate the issue in a sample project? Furthermore, have you noticed the issue appearing after a certain action at your end - like upgrading the Telerik
Telerik by Progress
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