error with Solve App

[resolved]

Thanks for the quick reply. I checked G in HomeMode and got 10000. Checked the Solve App, still the same error message. I entered G:=10000 in HomeMode, confirmed G, returned to Solve App, still got the same error. I then checked what was being stored in F, got 7.2****E-12, replace that value to -5000. Checked the Solver App and got the correct answer -8000.

I looked at the setting in HomeMode and found "digit grouping" but there was no way to turn it off. Is there another way to turn off "digit grouping" ???