Can't open psclient.app? OS X 10.10.1

[Izelda]

Hi, I tried updating my last PS, but wouldn't work, so I just redownloaded, but it crashed on opening the app.
Tried a repair, everything got updated, but it's still not opening

[Zunna]

What skin are you using ? (elves, minimatux, etc ?) If it's a modded Skin, you need to download its new version as well.

Also on Mac, be sure to go see in Launcher and tweak your Anti-Aliasing to 0x (Launcher > Settings > Graphics > Anti-Aliasing 0x)