644 Views 1 Reply Latest reply: Apr 10, 2011 5:29 AM by Carolyn Samit
Download and install the v10.6.7 combo update available here.
The combo addresses Mac App Store bugs that may help. Make sure and restart your Mac after the combo is installed then launch the Mac App Store.
If you still have problems, you can email MAS Customer Support here. You should receive a response within 24 hours.
And troubleshooting links available here.