I have a Callaway range finder and need a software update and they provided the following directions and have changed the Java runtime versions several times to get their exe to update.Hello Doug, Thank you for contacting Callaway uPro Technical Support.

Hello Doug,

Thank you for contacting Callaway uPro Technical Support.

Please follow the instructions below to sync your upro mx/mx+ with your computer and update to the latest software - 3.1.005.

1. Ensure the upro sync software is running on your computer (you will see a black icon at the bottom right of your screen by the clock with a Callaway logo in it).

2. Plug your device into your computer; select Sync then PC.

3. The sync software should initialize and launch the uxplore website. If you haven't installed the upro sync software you can download it Here:http://www.callawayuxplore.com/downloads/

4. Download this: http://media.callawaygolf.com/webupdate/callawaygolf/2012/products/accessories/u pro/upro-mx-plus/downloads/3_1_005_launch.jnlp.zip

5. Double click "3_1_005_launch," then click the green START button

NOTE: If you get a "Unable to launch application" error please follow the instructions below.

1a. Navigate to "Control Panel" through the start menu located in the bottom left of your screen.

2a. Find and uninstall any "Java" applications. After uninstalling please go back to the start menu and right click on "Computer" or "My Computer" and select "Properties". In the right half of the pop up windows it'll say the Operating system your computer is running. If it says x64 bit click: http://tinyurl.com/lhkps2rto download the correct java for your computer. If it doesn't have a number please click: http://tinyurl.com/qysyctb to download the correct Java.

3a. Once the correct Java is installed please follow steps 1-5 listed above.

4a. To update your Java back to 7 please click: http://java.com/en/download/index.jsp. Once on the page select "Free Java Download" to run the download (Make sure to uncheck any Mcafee or toolbar installations during the installation).

Once the update has completed the device will restart itself. At that time you can unplug it or select Sync and PC to launch the uxplore site again to continue syncing courses.

NOTE: Do not try to sync courses to the unit while the update is running or both processes will fail.