Nope. This is Internet myth territory. If you display email as HTML, someone can embed in the message an image that is loaded via a URL request. That someone now knows that you requested the image and can deduce that you probably viewed his message as HTML.
If you trust the person who sent the HTML message, you are OK. If you do not know the person who sent the HTML message, don't "view as HTML". If it is not an HTML message, relax. Richard Hart Cheshire wrote: >I very rarely click on links in email, and 99% of the >forwarded email I get is never opened. So, I want to >know if it is really possible for someone to know >what email I open using PowerMail?