AdvStringGrid Font Size Control gets diabled.

Can you clarify?

Sorry, the post was sent before I realized it.
What I wanted to say was that after a program line such as:
Form1.AdvStringGrid1.Alignments[col, row]:= taCenter;
Form1.AdvStringGrid1.Colors[col, row]:= clYellow;
then any attempt to control the font size for that cell is locked.

When you set an attribute for a cell, that means the cell becomes "attributed" and further changes should be done via attributes, i.e. grid.FontSizes[col,row]: integer;