My Macbook, Version 10.9.5 Build 13F1077, AppStore is somehow broken. It's like the formatting of it is broken. See attached image. Any idea's about what happened or how to troubleshoot or fix?
As a follow up to inquiries from @d-w @thomas-jones, yes, I am seeing bad formatting on some other Apple web pages. For example:
Best Answer
Try opening Terminal and entering the following command to enable the App Store Debug menu:
Then, quit the App Store (if it was already open), and relaunch it. You should see a new menu after the Help menu labeled Debug. Open it and select Reset Application.
If that doesn't solve your problem, you might need to flush the DNS cache, the commands are listed below.
Yosemite:
sudo discoveryutil mdnsflushcacheLion, Mountain Lion and Mavericks:
sudo killall -HUP mDNSResponderSnow Leopard:
sudo dscacheutil -flushcache(to remove the debug menu from the App Store, enter the same command above used to enable it, and change the end from YES to NO.)