Yesterday I installed kali on my MacBook White 2010. I had some problems while installing but I fixed them and now it's working, but not very well: when I open iceweasel a black screen appears with white dots and the system stops working. So I tried to uninstall it and install chromium instead. At first it work, but then it freezes just as iceweasel. I think it could be a hardware problem, maybe about the ram. I surfed all the threads and forums but I can't find a fix.
Thank you for your help!