Thank you so much for your clarification!
It works fine now, once your recommendations were implemented. Anyway, how could I know? Thanks again!
By the way, since you are there, could you please take a look at the other post a couple messages below this same newbie section and provide me with a hint on how could I possibly restrict clicks to just one GridCtrl row? The post title is Restricting GridCtrl Selection to just One row [message #32622] (sorry, dont't know how to refer you to the msg directly by a link using this forum).