A few days back I opened up my PC and disassembled it later when I attached it then I tried starting it up.When it opened up there was no display that was when I attached the LCD wire in my graphic card,but the system was running properly but when I De attached the wire and attached it to the normal VGA a port of the PC (WHILE MY GRAPHIC CARD WAS INSERTED) the display was back on can someone please help me out what should I do.