The Netscape Unofficial FAQ

Typical Source and workarounds of Mac Type 11 Errors

1) System-related

  • System: System 7.5.3 or later is recommended for every PowerMac.
  • Open Transport: Version 1.1.1 or later will improve.
  • PPP: FreePPP or OTPPP? Get the latest version and switch between them.
  • Any other program has been installed recently? If so, try custom installing full components of Navigator. Some files such as ObjectSupportLib may have been replaced.
  • 2) Web-related.

  • Gif files: Try Auto Load Images off.
  • 3) Plug-in related.

  • LiveAudio: At least in some PowerMacs, it causes type 11. Remove the plug-in and try again. If a plug-in is offending, substitute it with a different one that supports the file format.
  • Allocate more memory to Navigator in the Get Info window if you want to use a lot of plug-ins.
  • 4) Java and JavaScript related.

  • Disable them in Preferences and see if it helps.
  • 5) Hardware related.

  • If your Mac is listed under Apple's repair extension program, getting repair may help.
  • Check if your RAM and Level-2 CacheRAM are securely plugged in the socket. If possible, try without Level-2 CacheRAM.
  • 6) Miscellaneous.

  • Avoid interrupting download of image files.
  • Corrupted data can be hazardous. Get a good ISP and latest driver for your Modem.
  • Remove extensions that are not absolutely necessary.
  • For more info, visit:

  • http://www.macfixit.com/reports.shtml
  • http://www.macintouch.com/contents.html
  • http://www.info.apple.com/
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