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It may also be solved by setting the LockAspectRatio to true -right click the control, select format control and check the Lock Aspect Ratio check box.<br />
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This appears to have worked but it has not been in use long enough to confirm that this is a long term solution.
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It may also be solved by setting the LockAspectRatio to true -right click the control, select format control and check the Lock Aspect Ratio check box.

This appears to have worked but it has not been in use long enough to confirm that this is a long term solution.

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I am not convinced that this is the entire solution - see my own comments of 2 April 2011
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I am not convinced that this is the entire solution - see my own comments of 2 April 2011

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Thanks Rory, it really helped me out...I was in the same boat
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Thanks Rory, it really helped me out...I was in the same boat

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I have ActiveX controls on a worksheet which sometimes have their properties randomly rest (e.g. width, height, font size).<br />
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This does not seem to happen with Windows XP and Excel 2007.
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I have ActiveX controls on a worksheet which sometimes have their properties randomly rest (e.g. width, height, font size).

This does not seem to happen with Windows XP and Excel 2007.

Stop ActiveX Controls resizing randomly under Windows 7 and Excel 2010

Microsoft Windows XP is the sixth release of the NT series of operating systems, and was the first to be marketed in a variety of editions: XP Home and XP Professional, designed for business and power users. The advanced features in XP Professional are generally disabled in Home Edition, but are there and can be activated. There were two 64-bit editions, an embedded edition and a tablet edition.

Windows XP

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.

Windows 7

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.