[quote="NineRays"]I've checked trial version - v 1.0.10.4656 
Please download Flygrid Evaluation here 
I dowloaded the trial from the provided link and when I run the FlyGrid Demo the about screen reports version 1.0.9.25458  
I always remove the previouse installation using window's control panel and then install the new one. During the instllation, I always opt to install the grid in the GAC.
[quote="NineRays"]DataSource property you can find at FlyGrid.Rows (FlyGrid.Rows.DataSource)
 [quote="NineRays"]BTW - in the nearest updates we'll make more flexible columns wizard to customize each column in the process of columns initialization.