A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi NealChan,
Sorry for the late response. Please try to press Tab to move the "|" cursor onto the arrows, then press "PgUp/Up" and "PgDn/Down" to go to the next task.
In addition, in Safe mode, only the Solver add-in is launched. You can uninstall Solver and re-install it from its official site~~. If the issue persists, you can contact themyeducator Support Center for dedicated help.~~
[Updated by Jim Liu MSFT, 08:48 AM, Oct 3 , 2016 (UTC)]
Thanks,
Jim