computer keeps rebooting and I sometimes get 1/2 inch vertical stripes
I also get some flickering of the display
crwdns2934109:0crwdne2934109:0
I also get some flickering of the display
crwdns2934109:0crwdne2934109:0
Ouch! This is a symptom of a dead discreet GPU.
Carefully disconnect your battery following this guide MacBook Pro 17" Unibody Battery Replacement to Step 3. Now press the power button with nothing plugged in for a good 15 secs.
Now plug in your battery again and your MagSafe charger, restart your system but press the T key that will force the system into Target Disk Mode.
You should now see the FireWire Icon on your screen do you? The system should be stable in this condition.
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