In Onyx's latest firmware for some tablets such as the BOOX Tab X, a new screen refresh problem has emerged. With the new default "Speed" refresh mode, the screen will seem to jump backward and then forward as the refresh is occurring, and this refresh seems to happen at some random point in time decided by the operating system. While I believe this is a firmware issue that must be resolved by Onyx, there is a workaround:

1) On the home page of the tablet, long press the MobileSheets icon, tap "Optimize", enable the "Switch to Speed Mode when Dragging"option, but uncheck the option to force a full screen refresh after a period of time
2) Load MobileSheets, then drag up from the bottom right corner of the screen. This will display the Onyx configuration overlay which lets you change the refresh mode, coloring and DPI for the application. Change the refresh mode to "Regal".

You can also use the navigation ball to access the refresh mode settings. This combination of settings seems to provide a better experience overall, at least until Onyx fixes the default behavior.

Mike

Onyx has released a firmware update to fix the problems that were introduced, so this will slowly roll out to users over time. After the firmware update is installed, users can switch back to using the speed refresh mode.

Mike

Thanks, this had been bothering me for the last month or two...