And any warnings/errors in the logs?
I can't test Mac anymore, the more recent updates of MacOS won't let UT2004 run....
Ah the ol' Mac vs PC. I have both. I use Mac for work, super stable. PC/Windows for home use, its much better than years ago when Windows was just about the crappiest OS you could buy. My old work Mac in 5 years never locked up, never crashed. Go back to the older Windows you'd be lucky to make 5 days, however, the newer stuff seems to work fine, although I like MacOS a little better (linux/unix shell > powershell > dos shell.)For everything else serious I do (graphic design, 3D rendering and video editing) the Mac vastly outperforms.
I do like that you can build out a PC and upgrade components.
But I still miss my favorite-- Solaris.