yes.

The problem with some GPS devices is that, by default they do not produce the correct NMEA sentences. The locational information can be contained in several different message types e.g. GGA, RMC.
After a quick experiment, it looks like MP does not recognise RMC type messages, so I quess it requires GGA type messages.

BTW, the MP addin "Advanced GPS" (AGPS) will respond to RMC messages.

HTH.

M.