Well if that the case something is not working correctly because you can open the property sheet and the iif statement is there. Anyway i follow your recomendation and is working but I did not get answer to my BUG!. But is ok. I will give start to Cetin to help me debug the problem. And star to you for your recomendation. But I want both to understand that something in this version of VFP is not working right, i believe the line of code is inside of the property sheet is creating some kind of internal error that remove the line before execute the init.