An alert box appears with an error message that says: "Out of Memory", and the system stops responding. This happens when you use the File Synchronization control panel at the same time a dialog box is on the screen, and one of the folders you're synchronizing has a custom icon. For example, you've opened Preferences from the Edit menu while synchronizing a folder with a custom icon and this error occurs.
Solution
Download and install Mac OS 9.1, which is available in article 75103 "Mac OS 9.1: Software and Before You Install Document" .
You can work around the issue by eliminating custom icons on the folders you want to synchronize. Follow these steps to remove custom folder icons:
2. Find and select the folder with the custom icon.
3. Choose Get Info from the File menu.
4. Click the custom icon in the Get Info window to select it.
5. Choose Cut or Clear from the Edit menu, or press the Delete key.
6. Close the Get Info window.