Outlook font problem

I have Office Pro 2013. In Outlook, all the text in the ribbon and the navigation/folder pane has changed to a feint, spidery font. The text in the mail window is OK and all emails display OK. The ribbons in Excel, Word etc are all as they should be. The problem is specifically with Outlook.
Can this font be changed?
All the fixes I find on the internet relate to changing screen resolution which is not the problem here.

See attachment.

Fonts, sizes and color settings of the Outlook interface - HowTo-Outlook

bro67 said:

Fonts, sizes and color settings of the Outlook interface - HowTo-Outlook

Thanks bro67 but there is nothing here that tells me how to change the font. It only refers to the general Windows settings which will change every application on the PC.

sydh said:

Thanks bro67 but there is nothing here that tells me how to change the font. It only refers to the general Windows settings which will change every application on the PC.

It tells you in the link how to change the Ribbon Font for the Theme that you are using in Office.

bro67 said:

It tells you in the link how to change the Ribbon Font for the Theme that you are using in Office.

I can see how to change the Navigation Pane font, but that is not for 2013. I quote "Only Outlook 2010 has an option to directly modify the Navigation Pane font type and size:"I must be blind. I can see nothing regarding the Ribbon Theme. As I stated previously, the Ribbon font in all other Office apps is as it should be. The problem is specifically with Outlook.

bro67 said:

Again, that link covers Outlook regardless of the version number. Everything you need to know to change the Outlook Ribbon Font is in that link.

Am I being thick? I have scanned the complete article and there is nothing about the Ribbon.
Here is the Menu for the article and there is nothing re Ribbon. Are we looking at the same thing?

OK, I've given up. I have scanned everywhere trying to find the instruction you mention in the link but the only changes you can make in the Themes are light grey, dark grey etc. There is nothing about fonts which explains why Microsoft state the fonts cannot be changed in 2013. Presumably a complete uninstall and reinstall of Office would fix it, but I would rather dump Outlook and move to Firebird or Gmail if I have to. Thanks anyway.

Thanks AndreTen - That fixed it immediately. I didn't even have to restart the PC. The font changed instantly.