Microsoft KB Archive/100473

= Microsoft Knowledge Base =

Troubleshooting Corrupt Files in FoxBASE+/Mac
Last reviewed: January 13, 1995

Article ID: Q100473

The information in this article applies to:


 * Microsoft FoxBASE+ for the Macintosh, versions 2.01

SUMMARY
Corrupt indexes and .DBF files in FoxBASE+/Mac can be caused by Macintosh system problems. Corrupt files can crash the system periodically, display duplicate records that have not been entered or garbage text, and various other symptoms.

See below for information on how to troubleshoot Macintosh system problems.

MORE INFORMATION
There are several potential causes of Macintosh system problems:

  INITs or Extensions that are not compatible with the Macintosh system software or FoxBASE+/Mac are a frequent cause of these problems. To determine if this is the problem, do one of the following: - Under System 7.0, press the SHIFT key while restarting the machine to disable all Extensions. Once the logo "Welcome to     Macintosh/Extensions Off" appears, release the SHIFT key. - Under System 6.0x, drag each INIT out of the System Folder and restart the Macintosh. NOTE: You may not be able to remove all the Extensions or INITs; some may be needed to run the Macintosh. Remove as many INITs or Extensions as possible. The manufacturer of the INIT or Extension that seems to be causing the problem should be contacted to see if it can be run with the system software that is installed.  Another cause of corrupt files, particularly indexes, is the disk cache that can be turned on with System 6.0x (the cache starts automatically with System 7.0). FoxBASE+/Mac 2.01 is not compatible with the Macintosh system disk cache when it is set to high amounts. The disk cache should either be disabled or set to its minimum amount, which is 32K under System 7.0. The disk cache can be disabled through the Control Panel. Multiple System Folders and folders that contain extra System and Finder files can also cause corrupt files in FoxBASE+/Mac and other programs. Make sure that only one folder on the startup hard disk contains a System and Finder file.