To fix the Mac App Store error 100, quit it and iTunes, then delete the contents of ~/Library/Caches/ and /Library/Caches/. 6 years ago
The fine print
-Talking Mac is an independent online radio show, and has not been authorized, sponsored, or otherwise approved by Apple Inc.
- Apple, Macintosh, iPhone, MacBook, XServe, XSan, Final Cut Studio, iWork, and Mac are registered trademarks of Apple Inc.