2011 27" i7 iMac - running Mavericks I installed a 64GB SSD almost 2 months ago as just my startup drive... And all this time for some reason, I thought TRIM was on.. Nope.. It wasn't.. So yesterday I downloaded TRIM Enabler and turned it on... It prompted me to restart for the changes to take affect.. Now.. It won't boot up... I get a slashed circle with a spinning circle on the bottom of it.... I booted up from an external drive and it looks like all my data is still there... I tried resetting the PRAM. Nothing. I tried selecting it as my startup drive. Nothing. I tried Repair Disk via Disk Utility. Nothing. I tried turning TRIM back off. Nothing. What do I try next?