The screen is whirling around and I'm getting dizzy.
Somehow Heads Up mode has gotten checked in the Map Menu. Uncheck it (you may be able to check and uncheck this only while GPS is connected). Then, in the Map Menu, tap Reset Direction to reset the map so that North is up. You can see which way North is currently by looking at the triangle indicator in the top left corner, just under the Windows logo.

The GPS disconnects after 40 minutes or so.
See the note about saving your breadcrumbs--if you make sure the option to do so is unchecked when connecting the GPS, it'll stay connected indefinitely.

Mapple crashes and shuts down for no reason.
This happens sometimes when Mapple is run from the memory card. Install the program to the main memory instead. I've already sent JLT customers affected by this instructions for moving the installation to main memory; recent and currently shipping JLT systems come with this already fixed--you shouldn't run into this problem.

It's frozen.
On earlier versions of the program (Pocket Mapple Digitial v.8 and earlier), if you turn off the PDA or Bluetooth or the GPS while the GPS is connected to Mapple, or if you attempt to connect Mapple to the GPS without the GPS and Bluetooth already turned on, Mapple can't find the GPS but won't stop looking and freezes the whole system. You'll have to do a soft reset (hit the recessed reset button--on Axims it's on the back, on iPAQs it's on the bottom, and I don't know where it is on other PDAs and SmartPhones). This shouldn't be a problem with Pocketmapple v.9.

I can't change map sets through the Open Map Set function in the Map Menu.
That's right, as it says on the Map Menu page (which also links to the solution).

Location seems to be consistently some distance off.
Temporary inaccuracy can come from signals bouncing around off nearby buildings and cliffs, but if your location is consistently off by a certain amount in a certain direction, you need to make sure the datum is set to 世界測地 in the Map Menu and, when you connect to the GPS, to WGS-84.

GPS is connected, but it's not showing my location.
Make sure the GPS itself has a signal. On the first start of the day, it may take 30-60 seconds to acquire enough satellite signals to know where it is (subsequently it should take just a few seconds). The first time you start it after a long period of non-use or after moving a long distance with the GPS off, it may take 5-15 minutes (it has to download a lot of data from the satellites). And the GPS won't get a signal indoors or where something is blocking much of its view in the sky (it's generally find in your pocket, a purse or camera case, or anywhere in your car). Look at the GPS itself to see if it's got a signal (in the RBT-2300 from JLT, the yellow/green center LED will glow steadily when it's got a signal and blink when it doesn't; many other models do exactly the opposite). The RBT-2300 seems to be better and faster in all these situations than the other units I've tried, even other units built around the same GPS chip.

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