When I make outbound calls, for some reason my phone is automatically defaulting to loudspeaker mode. Has anyone have this peoblem?  The only way I fixed this is restarting it.

Can anyone confirm this?  I use regular stereo head phones (not the ones that came with the phone), and I listen to some mp3s.  I shut off the mp3 and go back to menu.  Then I take the head phones out.  I make a call off my contact list.  It automatically goes to loudspeaker mode.  I then have to press loudspeaker twice, to get it back to normal.  The only way I fixed this is to restart the phone (power off, then on).  I might of found a bug.