Is anyone here using a Bluemate 630 bluetooth headset?

I have one which I use with my Nokia 6600. Unfortunately it seems to have
stopped connecting and I can't get the 6600 to 'see' it.

I remember something in the instruction sheet (long gone unfortunately)
about a combination of buttons to change the profile of the Bluemate 630
from handsfree to head set. This may be the problem.

If someone does have the instruction sheet handy could they please look this
up for me and post the info here?

Many thanks :)