Thanks your support always. My Powerbuilder crashed after one datawindow failed to open, as it impacts all the datawindows in the IDE, and all the datawindow cannot open in the IDE since one failed, Can help me on that, as it happend many times in the past, each time I have to reinstall it, but since our administration role has been cancelled in our company, is there any quick and easy way to make my Powerbuilder back as normal with proper datawindow UI