DFM file is still missing so I'm not sure how the title fonts are set for each column. Also please provide what version of my components are you using and your registered email from the component purchase.
Anyway in the RAD 101 there is a bug in the scaling of standard DBGrid which is partly fixed by my rDBGrid, but only if the title font is set.
So probably these 3 columns are set in different way as others.
Similar with TToolbar used for my rDBAction toolbar. Scaling is not fully supported in this RAD version.
I would suggest to use current RAD version (104 or 110) with better scaling support if you need to use it.
Thanks and regards
Tomas