Chart axis resizing affecting full screen

[msixdatateam]

Hi

My workbook operates in full screen mode simly to make it looks a bit nicer. I have some + - buttons that call a macro to change the scale of the axes of a chart (sort of a zoom effect). For some reason, whenever I run these macros my workbook exits out of full screen mode. Why is this?

Here's an example of the zoom code:

ActiveSheet.ChartObjects("Chart 115").Activate
ActiveChart.Axes(xlValue).Select
ActiveChart.Axes(xlValue).MinimumScale = 200000
ActiveSheet.Range("a1").Select

Thanks

[msixdatateam]

I've also just noticed that running this code makes the workbook open a seperate version of the active worksheet!?

[msixdatateam]

Any ideas guys?