I have this strange issue: my MR-350 stops sending it's NMEA-stream about 20 seconds after plugging it in.
I can see the NMEA strings coming via the GPSinfo.exe utility, but after about 20 seconds, that just stops. Only unplugging en plugging it back in (or disabling and enabling via the device manager) brings it back, for another short run.
I suppose the Prolific driver has installed correctly (I can see it in the device manager on Com 6), I used the Win-all-in-one driver from the website. The OS of the system tested: Win XP Pro SP3.
When inserted in a Linux (ubuntu) machine and issueing "stty -F /dev/ttyUSB0 ispeed 4800 && cat < /dev/ttyUSB0" the MR-350 keeps happily running. So it's unlikely the problem is in the device itself.
Does anyone has experienced something like this before?