Signature pane formatting and non-default account

[SFCurley]

I have read through all of the posts relating to signature pain usage for a non-default account where you have multiple accounts, and can't find a definitive answer to this question.

When I use PM at home, where my wife's account is the default, and I try to setup a signature that will automatically be inserted into MY account's email (not hers), the only way I can see to do this is by enabling the signature pane. However, when I do, the formatting from my inserted signature is lost. If I manually insert via insert signature or by creating new message from template, the formatting is intact.

So, is there a way to use the signature pane to have my signature automatically inserted AND have it retain formatting?

Thank you.