Bold Font Style Missing

[Jaamie]

Excel 2010 Recently the Bold Font Style is missing from the Font Style list when formatting cells. The List contains Regular, Italic and Bold Italic. No plain Bold. So everything I bold is also Italics. When I Un-Bold it returns to Regular no italics.

This is only in 2 workbooks. If I open a new workbook, Bold is there.

Any ideas?

Jim..

 

[Jaamie]

I note this is only in Arial Font. If I choose some other fonts they have Bold.

On my Excel 2007 machine Arial has Bold.

Also this problem just started recently.