HTML email - Do you see the problem?

Sorry man, I edited my last post because I didn't see de debug info. I asked the following 3 questions:

So what does the end say of the debug info?

Are you mailing to a gmail account?

You are sending with the charset setting on UTF-8?

Code:

if($this->email->send())
           {print_r($this->email->print_debugger()); exit;}

both empty and email is send out (text/plain)

About the above piece of code... Maybe I am mistaken, normally I'm echoing out $this->email->print_debugger to view de debugger info. I never print_r. Maybe that will explain why you're not seeing normal data.
Oh, when print_debugger is only used when then sending the mail is successful, it will never give you back errors when something is wrong.