Recently my Mac has been exhibiting two strange behaviours:
- Preferences for Safari and Windowshade return to their defaults on their own every few days.
- On occasions, when I select shut down, the computer does a reboot instead.
What can cause these?
- Mac Pro 2012, 6 cores 3.33 Ghz
- OS X 10.6.8 (no intentions to move to Mavericks)
- OS X on SSD, user folder on HDD