I had an issue with Fallout 1 having a slow and unresponsive mouse when I had the game installed using crossover on my mac. Problem went away when I installed the mac version that GOG just released. In fallout 2 I encountered the same issue, but only when I had the resolution set higher then 800 x 600 using the high resolution mod. Have you installed the 1.02 patch for the game? That might solve the problem. Also, set your mouse tracking speed to max in game and in your system preferences.
Fallout 1 is a great game! I would suggest playing it. The NPC's can be maddening, but that just adds to the fun. Also, stay away from walkthroughs. I read walkthroughs while playing fallout 1, and I ruined the experience.
Hi. Yeah I was using Parallels on my Mac. I didn't realise GOG had released a OSX version, I'm downloading Fallout 2 now. So I'll give it another shot.