Mac App Store: Sign in sheet does not appear, or does not accept typed text

Products Affected

Mac App Store, Mac OS X 10.6.6

Symptoms

  • When you attempt to sign in to the Mac App Store, the "Sign in to download from the App Store" sheet may not appear
  • Even if the sign in sheet is visible, text you type may not appear in the Apple ID or password fields

App Store sign in sheet

Resolution

Third-party software that alters your system, such as FruitMenu or APE (Application Enhancer), may cause these issues.

Disable or remove the third-party software.

Additional Information

If the issue persists after removing the third-party software, reinstall Mac OS X v10.6 from your original install media, followed by installing all updates available from Software Updates.

Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple’s recommendation or endorsement. Please contact the vendor for additional information.
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