[BerndVP]

So,

Still I think it isn't fixed already.

When starting Kodi v14 RC1, the resolution of KODI is Incorrect.
I'm using my MacBook Pro Retina on the 1920 * 1200 Resolution.

Only when using shortkey cmd+f twice I get the correct resoluton.

I attached the log file, so I hope this could help.

http://www.nep2b.be/kodi.log

[Memphiz]

I can't see from the log which resolution you get in error on startup (it shows that it selected the 1920x1200). Also don't expect a fix really - it needs a dev with retina macbook (i have none) to investigate it any further...

[BerndVP]

The strange thing is, if you set the display to 'BEST' retina, in display, system preferences and you start Kodi, it opens correctly, only when you're using the screen on 'more space' (1920x1200) it doesn't start correctly.
I hope you will find a dev with a Retina MBP in the future.