Error exporting to Word

Hello everyone,

one more strange problem from my side: while throwing a page into Word (Ctrl + W) I get a proper Open/Save dialog. But not mater which option I choose there is an error in the end:

Microsoft Dynamics NAV

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Filter string you provided is not valid. The filter string must contain a description of the filter, followed by the vertical bar (|) and the filter pattern. The strings for different filtering options must also be separated by the vertical bar. Example: "Text files (*.txt)|*.txt|All files (*.*)|*.*"

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OK

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There are no filters applied to the page. Actually it seems like I cannot export any page into Word.
Does anyone have any ideas?

Thank you.