PHPBB and WordPress Login integration

Ok so i have been looking every where for this and have not been able to find just what im looking for. Most of the hacks i have run into simply do way more than i need or do something differnet.

I am looking for a solution that will allow me to login on my wordpress site and have it automatically login me in at phpbb. I dont want to have anything else. Im not looking ot integrate both sites together just the login.

Thanks ahead of time your suggestions are appreciated.

I also would be up for alterantives like some sort of wordpress forum plugin in maybe. Though i really like phpbb and would prefer to use it.