While logged into a Google account, your email appears in the top
right-hand corner. On some Google sites (Gmail, Reader, Calendar) my
email address appears in all lower-case letters ([email address]).
However, on others (Google's main page and Groups, for instance) it
appears with the first letter capitalized ([email address]). I
created a new Gmail account a few days ago, and it does not have this
problem.

By any chance, and I realize it's probably not possible, is there any
way to make it appear as all lower-case letters? If not, why is it
that my newer account does it?

Thanks,
Chris