Excel 2007: Conditional formatting bug: Font reverts to Cambria

[trevexcel2]

Whenever I use conditional formatting the font changes to Cambria (size 10 or something). I can't change the font nor its size using [home, conditional formatting, manage rules, edit rule, format, 'font' tab. It's all greyed out! It looks like a bug? I've seen posts on this on the web but no answers. What now?

 

[Trevor G]

Have you looked at the Style element of Excel 2007 to see if there is something in there that needs to be corrected? Use Home Tab and on right Cell Styles

 

[trevexcel2]

(Another famous Trevor!)<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>
<o> </o>
No I don’t see any "Cambria" there, but will keep my eyes open.<o></o>
<o> </o>
(Ps I'm using Windows XP SP2. We're going to upgrade to Windows 7 in a few months, so I guess something might happen then that corrects this thing.)