Weird HP Pavilion DV5T-1200cto problems...Wondering if anyone else has had issues similar or can help?

I recently came upon an HP DV5T-1200 all white custom notebook with a nice CPU and 2GB DDR2 ram. I have a 60GB Kingston SSHD, 500GB 7200rpm OEM Samsung HDD for the 2nd HDD which is replacing the optical drive, optical drive caddy in white to go with notebook, and a three USB 3.0 port 54mm PCMIA card for the card slot, and 8GB DDR2 PC6400 666mhz ram (idk if it will handle it running 64 bit Windows 7 Pro, haven't got to try yet). All these parts are extra stuff from other laptop repairs I've done recently. Having worked on over 400 laptops, I would say I am decent at least when doing this and am extremely slow and carefull when taking them apart.

With that said, upon receiving this notebook the hinges were snapped! Completely snapped and the only thing holding the screen to the notebook was the wires. The inverter cover was also broken off. But when you turned it on, the display came on fine along with all the other blue lights etc. Vista loaded was slow, but loaded. So I powered it down and using the service manual, slowly took the display apart and off the notebook like your supposed to when changing hinges and changed them. Then I used JB weld, fixed the broken plastic tabs on the inverter cover, used a dremel to get rid of all and any excess JB weld. Let them cure for a day and reistalled the inverter cover.

When I went to power on the DV5T nothing happened and it was like the power button didn't work. Well I realized when taking it back apart I made an idiot mistake and had the one ZIF ribbon connector that goes to the power button flipped upside down! So I put it back the right way and when I powered the notebook up I got the weird fuzzy screen? Sometimes I could make out on the screen that screen you get when your installing a new version of Windows on a blank hard drive that says Install Windows on the first line and the second line says X64 repair or something similar. You could barely make it out but kind of.

So today I tried changing the video cable thinking maybe the kinked video cable was bad but nope same thing is still happening. What could be the problem? Would a bad inverter cause this? (UPDATE: I replaced the inverter and same issue is happening) and What would have caused the inverter to go bad since it worked fine before i changed the hinges? Could the screen have gone bad? I just really don't want to waste more money on an inverter if its going to be the GPU. But why would that suddenly go bad when it worked fine two weeks ago and I've only had it powered on a couple times for less than a minute since? It's not like it even warmed up. The cooling fan never even kicked on it was powered on that little.. Would the VGA output still work if the inverter was bad? The VGA doesn't send any signal. That's weird when the screen itself worked perfect just a few minutes before I changed the hinges. Is there a button command I have to press to get the VGA to come on?

Just real dissapointing because this has never happened to me before. Usually it's the inverter, the cable, the screen which you can tell 99% of the time when its the screen, or its the dreaded GPU which I seriously doubt it is. This DV5T-1200 had about 40 hours of time on it total and hadn't been turned on in two years before I got it. Anything helpfull would be great from the Pavilion community!! So as of now I've replaced the entire display / video cable, the inverter, and the screen and the issue remains. Here are some pics



Here are some pictures of what the screen is looking like upon start up.