Yosemite - MacBook Pro: Boot loop/Blue screen

Hi, I've been running Yosemite on my MacBook Pro for about a week now, then while using it yesterday the screen randomly went blue with black lines through it.
At the time I was playing a beta version of Football Manager 2015, so I thought that it was an error with the game. I forced a shutdown and left it for a minute or so. I turned it back on and now it continues to reboot itself during the status bar on startup (after about 40%).
I have already tried a couple of solutions:
Command + R: Blue screen
Command + Shift: White screen freeze during status bar startup
Option key: brings up Recovery but after clicking that the screen goes blue.
Command + Option + P + R: Still reboots. No change
Any suggestions/knowledge would be greatly appreciated.
Thanks.

I Have the same problem. Did you find a solution .

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Gus@MaggiesFarm,
try this: boot your MacBook Pro into Recovery mode by holding down a Command key and the R key as it starts up. Once the Mac OS X Utilities menu appears, select Disk Utility. On the left-hand side of the Disk Utility window, select your internal disk’s boot partition (typically called “Macintosh HD”). On the right-hand side, press the Verify Disk button if it’s not greyed out; if it is greyed out, or if it reports that errors were found, press the Repair Disk button. Once the verification/repair is completed, exit Disk Utility and select Restart from the Apple menu to restart in normal mode. Does it get past the white screen now?

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Hi JRC8.8,
It sounds like you have been on the right track in trying to troubleshoot this issue. You may want to see if your MacBook Pro will boot directly to the Apple Hardware Test, as outlined in the following article:
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http://support.apple.com/kb/ht1509
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Kappy wrote:
Force a shutdown. Do not restart yet, but first do the following:
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If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Next, boot into Safe Mode then restart normally.
Hi Kappy,
Checked the hard drive after forcing a shutdown and booting from my Snow Leopard Installer USB Key and the status of the HDD says "Verified". I ran the repair and the volume was repaired successfully. Clicked on "Verify Disk" and it says "Macintosh HD appears to be OK". So I ran a second repair and again no errors were reported.
As suggested I booted back again in Safe Mode and restarted normally. All software appears to have been installed successfully. But I don't understand why my computer hanged and showed the spinner after installing the updates in the blue screen that appears just before rebooting. I am aware that the system shows that spinner after a OS update but the longest it lasts is 30 seconds at the most in my previous cases.

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Yosemite - MacBook Pro: Boot loop/Blue screen

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