My friend turned on her mac today and most of her text is now just question marks. See the attached screen shot. Nothing she does takes away the question marks. She reset the SMC and PRAM and no change. Anyone seen anything like this? She has Yosemite.
If she can, she needs to troubleshoot fonts. Block "A's" are usually due to a corrupted or duplicate font.
Open the Font Book located in your Applications folder.
Then go to the Font Book menu bar and click Edit > Look for Enabled Duplicates
If there are no duplicates found, back to the Font Book menu bar, click File > Restore Standard Fonts
Fonts not included in the OS X system install will be placed in a "Fonts (Removed) folder next to the Fonts folder.
If she can't access the Font Book app, she may be able to troubleshoot fonts from Safe Mode. (A Safe Mode boot also deletes system caches that might help too).
To start up in safe mode:
Follow the instructions above for troubleshooting fonts.
To leave safe mode, restart your Mac without pressing any keys during startup.
Question Marks Everywhere
