Application.Visible=False not working on some PC's

[toughie]

Hey Folks,

I have been running a excel file for a while now with no issues but recently i have had a problem on my PC.

I have Application.Visible=False on This Workbook and it works fine on other PC's but on mine it closes the App then opens it again immediately.

The code must be good because it works on other PC's so i was thinking it might be my Excel settings?

Any help is greatly appreciated!