the mac version is updated now.
If it still happens, can you tell me what your video settings are (scaler, resolution, game size, fullscreen?)
And no need to be sorry. Your bug report was great. Everything came together through this:
- in 2009 Marzo added the ambient light intrinsic but didn't know where it gets triggered.
- a couple of months ago, I fixed the light effect of the light spell (same as the ambient light uses).
- your report showed us exactly where ambient light was used (at least one place)
-> Marzo was able to do the light effect correctly for ambient light
-> win
![Smile :)](./images/smilies/icon_e_smile.gif)