403 forbidden in Mac App Store
imac intel, Mac OS X (10.6.7), 403 forbidden
imac intel, Mac OS X (10.6.7), 403 forbidden
I had the same problem. Tried fixing permissions, deleting plist, etc. Turns out the problem was the cookie function in my Anti-Virus software. I use Intego. Once I permitted cookies it installed without a problem.
It's a shame that Apple doesn't understand what their own 403 error means, and that the 403 error doesn't provide any more information.
What this error means is that you have exceeded the "download cap" that your Internet Service Provider has set for you. You have gone over your allowed download usage. Some ISP's will limit you to a certain MB size per download.
This is an ISP problem, not an Apple problem. Talk to your ISP.
403 forbidden in Mac App Store