The FTM logo/graphic at the top of every page disappeared ... today. I noticed it trying to load, then the outline of the space just went poof. So now there's a large blank space to the left of: An open community of Macintosh users, for Macintosh users.
Cache corruption can sometimes be an early warning of disk directory corruption, since cache files are written often. The likelihood is low; however, you might want to run Disk Utility on your hard drive to make sure everything is OK.
Thanks. I do that frequently. In this case I ran Repair Permissions and Verify Disk. Nothing apparently awry (except for the "unexpected" ACL issue*, which always shows up and is "repaired" by Disk Utility).
* Unexpected ACL issue: ACL found but not expected on “private/var/root” Repaired “private/var/root” ACL found but not expected on “private/var/root/Library” Repaired “private/var/root/Library” ACL found but not expected on “private/var/root/Library/Preferences” Repaired “private/var/root/Library/Preferences”