I am using v9.1.0 and I have been playing both Titan Quest (Immortal Throne) and Sacred Gold for the past few days using either a Cyborg Rat 5 or 7 mouse (just upgraded to a 7, and using ControllerMate for programming) and even tried the trackpad (playing on a 2.26GHz Macbook with 4GB) and a Razer Salmosa, and am unable to get started with these 2 games. Titan Quest (not the expansion) I can actually click on menu options (it takes 2 clicks, where it used to take 1), but the other two I am unable to click on Start Game, Load Game, or anything, even though they highlight.
I had been playing earlier tonight, quit to eat, came back and Steam notified me there was an update, so I told it to run while I was finishing up. Wondering if anyone else is having similar problems, I could at least narrow it down to Steam, Crossover Games or ControllerMate! Thanks