I have a 2013 MacBook Air running Mavericks. I have a "work" and a "personal" account that I switch between throughout the day using Fast User Switching. Sometimes when I switch accounts, the (built-in, only) display turns an awful, washed-out blue. I thought the behavior was random, but I've figured out how to reproduce it consistently.
- Have multiple accounts.
- Log into one account from the Login Window.
- Use Fast User Switching to switch to a different account that you're not already logged into.
Every time, the screen will turn blue. And when I look at the display preferences, I'll see that the factory color profile, "Color LCD", is not listed, and instead OS X is using the generic "Display" profile.
The screen will stay blue until I log out of the account that triggered the bug. Logging into the same account from the Login Window poses no problem.
For what it's worth, here's what the Display Preferences dialog normally looks like:
I have no idea why "Display" is listed four times. Perhaps it's a clue.