Although 1.0.2 was unplayable past 15 minutes (freezing or crashing) I was at least able to pay for, well, 15 minutes. First load of a clean install of this new version (1.0.4) led to a crashing seconds after loading the initial scene. On second loading the game did not crash however my mouse cursor was invisible. I could get input from the mouse (hover state changes, on click changes etc) however it was invisible. So far I have been unable to play the new version of the game without something prohibiting play completely and absolutely. I am going to try and throw in some RAM saving mods and see what happens. Although I shouldn't have to install third party mods and start the game in low-resolution for it to work (this isn't a Beta, after-all) I'll see if I can at least put my $40 to use. Steps to create error Downloaded and installed 1.0.4 from the KSP website. Unzipped and extracted KSP_osx folder to [Applications] (clean install) Allowed for opening of un-auth developer in Security and Privacy prefPane. Opened App and changed to full-screen mode. Started new Sandbox mode entitled "1_0_4" After a few seconds on load of Space Center, app fully and abruptly crashed. Upon reopening the game and loading the previously crashed save, I was able to enter the VAB without crashing however my mouse cursor disappeared. I had to CMD+Q quit the app as I was unable to navigate the GUI. System Specs OS 10.10.3 Model Name: MacBook ProModel Identifier: MacBookPro10,1 Processor Name: Intel Core i7 Processor Speed: 2.6 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 16 GB Boot ROM Version: MBP101.00EE.B07 SMC Version (system): 2.3f36 Chipset Model: NVIDIA GeForce GT 650M Type: GPU Bus: PCIe PCIe Lane Width: x8 RAM (Total): 1024 MB Vendor: NVIDIA (0x10de) Device ID: 0x0fd5 Revision ID: 0x00a2 ROM Revision: 3688 gMux Version: 3.2.19 [3.2.8] Apple crash log from first crash: https://www.dropbox.com/s/qjgwabpxdnr50py/1-0-4_FirstLaunch.txt?dl=0 Log from second load/mouse cursor disappearance: https://www.dropbox.com/s/phvtoag7murlsxm/KSP.log?dl=0 https://www.dropbox.com/s/8fu5sbpi13nqm9q/Player.log?dl=0