My main machine is in the shop for repairs, so installing this on my 10.9.5 iMac. Something is seriously wrong. Tried installing on my 10.9.5 laptop and everything was fine. - capital letters are sometimes missing in editor font. I'm guessing this is a graphics card issue? This iMac runs an ATI Radeon HD 4670 256 MB The laptop runs an NVIDIA GeForce. (macbook) 5.2 runs fine. This problem affects the entire Unity interface.