my nieces laptop (compaq gq62-238dx) was going to a white screen. hooked to an external monitor it works fine. I disassembled it and reseated the display connections. when I first booted after that the screen was blue tinted and then it quit working. the copmuter still works with an external monitor. I think the inverter for the screen has gone out or the cable is bad. any thoughts would be appreciated

If the inverter was gone then the screen would be dark. If the cable was faulty then you'd have no output. It's the screen itself, you need to fit a replacement one in there.

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