Excel 2007 : Font Change Question

I know how to change the default font for Excel 2007. I know how to change fonts within an individual worksheet.

However, I have noticed that whatever the default font was that was used to create the worksheet originally, say Arial 10, if I change the default font to anything else, say Calibri 10, new text entries will be Calibri 10, however entries for e-mail or url addresses, will default to the original font... in this case Arial 10. I have been able to duplicate this using other fonts and with new worksheets. My desire is that all entries would be at the new font and font size.

Has anyone else experienced this? If so, have you found a solution?

My only solution at this time is to change the font for e-mail and/or url address entries to the new font after entry each time.

Thank you for your time and consideration.

Thank you for your reply. I am using XP Pro. I will dig deeper. I don't understand why my program is doing this.