Need help with strange pc issue

[KCFalcon59]

Here is the background. I built my pc over a year ago and its been running fine.

i7 3770k
P8Z77-V MB
32 GB DDR3 RAM
EVGA 660 ti graphics card
256GB SSD

I decided to install a bigger SSD because I have nearly filled it up. So I back everything up. Shut down my pc. Unplug all cables. Remove old drive. Install new drive. Plug everything back in and when I boot up I can't get video to my monitor. It's posting and everything sounds like normal. Not sure what it could be.

I've put back the old drive and the same thing is happening. I've attached the monitor to my laptop and it works fine.

I am running out of ideas. I know someone on CP can point me in the right direction. Help!!

I will check back tomorrow for your suggestions/questions and hopefully be able to elaborate a bit better than I did.

Thanks in advance for any help you can give me!!