Perhaps another thing to check is what fonts were being specified at design time -- I do vaguely recall in the case where the specified font is not available, Windows may select the "closest match" -- which may or may not all that close in appearance.

>IIRC, ActiveX controls by default would use fonts set in the Windows current theme. Is it possible that Windows theme or Windows font settings have been changed on affected computers?
>
>>
>>We're using the MS Treeview Control ActiveX and the Exontrol Date Control (http://www.exontrol.com/excalendar.jsp) for many years.
>>
>>Sometimes our Users report to us, that suddenly the Font of ALL Active X Controls in all Forms are bold.
>>Bud we do not Provide such functionality ;)
>>
>>Could anyone give us a hint what this can be?