M17xR4 No Display after pressing WiFi button on top row...

This has happened to me a few times now, and is strange...

I reinstalled Windows on my M17xR4, and had a problem connecting to the internet - Wireless adapter was disabled.  I pressed the WiFi button above my keyboard to try and turn it on, and my screen suddenly went black.  (WiFi did turn on)  Nothing I did would restore the video feed to the display.

Through much difficulty, I WAS able to get an external monitor working -- basically as soon as my laptop POSTs, I have to quickly press Fn+F6, and heaven forbid I miss that small window of opportunity, because Fn+F6 does not work while and after it has booted to Windows.  It really *** when Windows decides to uodate in the middle of the night and reboot.

After Windows finishes booting up, I can press Fn+F6 - the external display remains on, but the laptop display only lights up .... nothing else.

I've tried everything I could think of to get my display working, ran the system diagnostics (which fails because I do not get the horizontal or vertical lines -- but the display will flash solid colours after that point).  I finally gave up hope, and ran it connected permanently to an external display.  

Just the other day, after a power outage, I booted up the laptop and the display was working...but WiFi was not.

After messing with that for a few hours, trying to get it to work, I caved and pressed the wireless button **poof** no display.

Is there something under that location on the motherboard that is being pressed on when I press there and that's what's killing it?  I tried removing the small wireless card at one point thinking that might be causing a conflict or something -- nada.  

I have no idea what else to try..