HTML signatures in mac mail - replying

Hello
I would appreciate some advice if possible please. I have created an HTML signature for a friend in Mac Mail (in Lion) and it works well apart from when he replies to an email. I have the setting "Place Signature Above Quoted Text" and when the signature is inserted, the quoted text appears next to the signature rather than below it, so it looks a bit untidy. I've tried inserting spaces at the end of the signature (in the HTML) but that doesn't make any difference. Does anyone have any ideas about how to resolve this please?

Thanks in advance.

Having the same issue. Quoted text in replies is appearing next to my HTML signature, not underneath it. I have the "place signature above quoted text" option checked.

Anyone have a solution?

Cheers, Sam.

There is an add-on called Quote Fix that is supposed to correct this.