Formula Calculation switches to manual

[WaterGypsy]

ok folks ... I'm grasping at straws here. A couple of times recently a colleague has had a problem that I have resolved as being caused by the formula calculation option being set to Manual .... it wasn't too much of an issue because I knew when she called what the problem was. However the issue seems to have spread to another user.

I can't see any code that might be doing this and neither of them is doing it deliberately.

Has anyone seen this happen elsewhere?

 

[MARK858]

If the first workbook they open is set to manual the it will change all the workbooks opened afterwards.

 

[WaterGypsy]

Thanks... looks like I will have to explicitly set it to automatic then