I made a change to how Personal Messages (PMs) operate. The email notification that you receive will now only let you know that you received a PM and from whom, and will no longer contain the body of the text. This is to make it less confusing. I was never happy with how it handled nested quotations within the email anyway, making PM conversations difficult to understand without logging in.
This way you will still get the notification, but since you need to use the forum to reply anyway, you might as well read it here where all of the formatting and the like still functions properly.