Hi! + 1 question

Hi!
    I'm a relative newbie to netbeans. It's a great ide (much better than JBuilder). But, I've hit some kind of snag with netbeans. After a hard day's work (creating forms with components and compiling them etc). I shut off the comp and go to bed. However, the next day when I reopen netbeans to recompile the same java file, the components on my forms disappear!! They are still shown in the ide, but when I run them, they become the invisible man..... I found that if I shifted at least 1 component in each frame and recompiled, then shifted them back and recompiled again, my components would behave themselves and reappear. What is going on here? When I compiled my 'invisible components' form in kawa, my components stayed invisible!!

How???

Thanks in advance.....

Rgds