Help Can't connect my SGS2 with my bluetooth headset after update

[chrizychris]

I updated my phone a few days ago (now ver 4.0.3). After this I can no longer connect my headseth (Plantronics m50) with my phone. It's listed, but I get the message that the password/pin is incorrect. I haven't changed anything and there's no place on my settings where I can reset or retype password Any hints?