MacroView dialog is transparent, blank or blocky

​MacroView DMF v7.5 and above makes extensive use of Windows Presentation Foundation (WPF) technology in creating elements of the user interface. This includes (but is not limited to) the Outlook pane and the metadata profiling dialog. In certain environments (particularly, but not only, Windows XP environments), WPF dialogs can sometimes render transparently or in a blocky manner when hardware accelerated graphics are used in conjunction with WPF. This results in a transparent or blocky appearance when rendering certain MacroView DMF dialogs, as per the following screenshot:

To resolve this, you need to disable WPF hardware acceleration. This can be done in the Registry by navigating to HKEY_CURRENT_USER\Software\Microsoft\Avalon.Graphics and setting the "DisableHWAcceleration" DWORD value to 1.If you are running 32-bit DMF on 64-bit Windows, you need to set the value in HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Avalon.Graphics.

For further information, please consulting the following article on the Microsoft Support site

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