Maintain different options for each profile?

[Jo Anne]

I have one PC with multiple users. I have created a
separate profile for each user. When I log on to my
profile, any changes I make under Options seems to affect
the other profiles. For instance, I selected the default
signature I want for my emails, but it was also applied
to the other profiles. If I log on to one of the other
profiles and change it there, it changes on my profile
too. Is there a way to have separate options for each
profile?