Problem outlook 2003

Hello

I am IT engineer in a company and I have a problem with Outlook 2003. When I
answered an email sent to me by some colleagues, I have my signature and my
handwriting font that are capitalized. I am obliged to go into options to
uncheck Shift to get everything into order. However, I am compelled to this
each time I have an email address. Another important details that this
phenomenon occurs only with 5-6 contacts. For the rest of the mail I receive
from other police colleagues is exactly as I have set for responses and
transfers.

Do you have an idea for solving this problem please?

Thank you in advance.

Please forgive my English, I have not mastered this language perfectly.