What did you add to your browser?, and do you have folders added from cloudservices such as drop box or network drives?.
Does your activity monitor
Do you say that we can't use the "rest" of our computer like we did before Live9??
I was just trying to install 9.0.2 - it's *always* crashing just after "loading set schablone" and fading away the logo, right before displaying the workplace window. Crash report (OSX 10.7.5 on a iMac Quad 8GB 27") says nothing but crash of the main live9 thread with no concrete info about loaded modules or something like that. Just crashing the Ableton Live 9 main thread. Every time on loading. With or without rebooting and completely de-installing older versions.
Live 9.0.1 is re-installed now and working as it should. Will wait for 9.5 and get my money back for that sh.t.