Controlling size of command buttons

The command buttons I am using are not retaining their size or position when rows are inserted or operations performed. I have had "do not resize or move with cells", and all other options (the opposites) ticked. No choice seems to work.

Any suggestions

In the Format dialog box, in the Size tab, I checked Lock Aspect Ratio.
In the Properties tab I checked Don't Move or Size with Cells. The
combination seemed to work.

HTH
Kostis Vezerides