Nokia 6230

I am having some issues using my plantronics bluetooth headset. When I am connected and I go to unlock my phone or go into the menu, sometimes the volume control will pop up on the screen. It happens pretty frequently and its more annoying than actually hurting anything. Im just wondering if anyone has had the same issues with any other headsets. I also use the motorola one when im not at work and I dont have that issue with that one.