>>>>The AfterRowColChange Event seems to me a logical place to do all this manipulations. All you need is Current ActiveColumn property to un-color the header of previous column.
>>>
>>>Right, but I don't want to create my own grid class (though it now seems like an easier route, than I currently follow). Anyway, I spent the whole morning today working on those changes and I almost achieved the desired functionality from the TextBox point of view. Lots of pemstatus, though, and tricky code...
>>>
>>>
>>I strongly recomend that you reconsider your approch.
>
>It's too late :) Ok, the next time I reconsider... :)

I'll be not responsible when it bytes you next time :)