Incorrect display of line - DBAdvGrid


The first line after overwrites scroll down, you can not get the last line of the keyboard (only a mouse), the last line is displayed wrong.
Example of -> Sample for DBAdvGrid
Sorry for my English, I use google translator

With just this screenshot it is hard to guess what's wrong.
Is the screenshot TDBAdvGrid? If so, can  you share some sample source project with which we can reproduce a problem?