Adding a Button to the Sales Order screen

Good Day

Experts:

I have added a button to the SalesOrder screen with help from a previous post here on the forum. The button was lined up with the others that were already exisitng on the screen. Recently, I have encountered a problem with it. When the SalesOrder screen is run on a different machine, the button is almost not visible. It appears there is some kind of issue with the screen resolution just for this button.

Do I have to do something special with this button when it is shown on the screen to get it to remain in line with the existing buttons?

Thanks,

EJD