From the Thursby web page. I copy the text here in case it suddenly disappears one day:
http://www.thursby.com/support/faq-reference.lasso?ID=33206
_ (Q) I've installed Mac OS X v10.2 Jaguar and now DAVE doesn't work. What should I do?
_ (A) DAVE 3.1.1 is not compatible with Mac OS X v10.2 Jaguar. We are working on an update that will be available soon after the commercial version of Jaguar ships. Please watch our web site, http://www.thursby.com, for update information. Also, please be sure you've registered your product so that we can notify you of new releases when they're available
You will need to either downgrade to Mac OS X v10.1.5 or remove DAVE from your system. If you decide to uninstall DAVE, using the uninstall option in the DAVE 3.1.1 installer will not work. To remove DAVE, you must delete the files manually. Below is the location of all the files DAVE 3.1.1 installs and how to remove them from the system.
Make sure to first boot into Mac OS 9 to delete these files. The first section lists the locations of the major components. The second section lists files that are actually created by the product. All installed files may be found in these locations.
Major component locations:
/Library/Application Support/DAVE Setup Assistant.app
/Library/DirectoryServices/Plugins/CIFSPlugIn.dsplug
/Library/Documentation/Help/DAVE Help.help
/Library/Frameworks/Thursby.framework
/Library/PreferencePanes/DAVELogin.prefPane
/Library/PreferencePanes/DAVENetwork.prefPane
/Library/PreferencePanes/DAVESharing.prefPane
/Library/StartupItems/CIFS
/System/Library/Extensions/cifs.kext
/System/Library/Extensions/NetBIOS.kext
/System/Library/Filesystems/DAVE
Created files( $HOME is the user's home folder ):
/Library/Preferences/com.thursby.DAVE.Network.plist
/Library/Preferences/com.thursby.DAVE.Sharing.plist
/Library/Preferences/com.thursby.DAVE.cifsd.plist
$HOME/Library/Preferences/com.thursby.DAVE.plist
/System/Library/Filesystems/DAVE/DAVE Printing
* Above location is the printing spool folder. Can be changed in the
DAVE Sharing preferences.
In addition, its important you delete the following file.
/sbin/mount_cifs (The /sbin folder doesn't show up in the Finder, so it may appear that it has been uninstalled. To remove it, you will need to boot back into Mac OS X. Then use the terminal (located in the hard drive under Applications/Utilities folder) and type in 'sudo rm -f /sbin/mount_cifs' (without the quotes). This file may be invisible.)
http://www.thursby.com/support/faq-reference.lasso?ID=33206
_ (Q) I've installed Mac OS X v10.2 Jaguar and now DAVE doesn't work. What should I do?
_ (A) DAVE 3.1.1 is not compatible with Mac OS X v10.2 Jaguar. We are working on an update that will be available soon after the commercial version of Jaguar ships. Please watch our web site, http://www.thursby.com, for update information. Also, please be sure you've registered your product so that we can notify you of new releases when they're available
You will need to either downgrade to Mac OS X v10.1.5 or remove DAVE from your system. If you decide to uninstall DAVE, using the uninstall option in the DAVE 3.1.1 installer will not work. To remove DAVE, you must delete the files manually. Below is the location of all the files DAVE 3.1.1 installs and how to remove them from the system.
Make sure to first boot into Mac OS 9 to delete these files. The first section lists the locations of the major components. The second section lists files that are actually created by the product. All installed files may be found in these locations.
Major component locations:
/Library/Application Support/DAVE Setup Assistant.app
/Library/DirectoryServices/Plugins/CIFSPlugIn.dsplug
/Library/Documentation/Help/DAVE Help.help
/Library/Frameworks/Thursby.framework
/Library/PreferencePanes/DAVELogin.prefPane
/Library/PreferencePanes/DAVENetwork.prefPane
/Library/PreferencePanes/DAVESharing.prefPane
/Library/StartupItems/CIFS
/System/Library/Extensions/cifs.kext
/System/Library/Extensions/NetBIOS.kext
/System/Library/Filesystems/DAVE
Created files( $HOME is the user's home folder ):
/Library/Preferences/com.thursby.DAVE.Network.plist
/Library/Preferences/com.thursby.DAVE.Sharing.plist
/Library/Preferences/com.thursby.DAVE.cifsd.plist
$HOME/Library/Preferences/com.thursby.DAVE.plist
/System/Library/Filesystems/DAVE/DAVE Printing
* Above location is the printing spool folder. Can be changed in the
DAVE Sharing preferences.
In addition, its important you delete the following file.
/sbin/mount_cifs (The /sbin folder doesn't show up in the Finder, so it may appear that it has been uninstalled. To remove it, you will need to boot back into Mac OS X. Then use the terminal (located in the hard drive under Applications/Utilities folder) and type in 'sudo rm -f /sbin/mount_cifs' (without the quotes). This file may be invisible.)