Amd catalyst driver problems

hey guys

Here is the problem, I was running linux mint 17 pretty smoothly,than I decided to install the catalyst driver 14.9. After the installation I rebooted.

now when I boot I can see the linux mint logo but then my monitor just starts saying "out of range" .

I am running an R9 270x and an fx6300. The monitor is a 1400:900.

what can I do? I'm going to try the machine on a 1080p tv, that is the highest resolution that I have in the house.