Windows XP creates a small file in some directories called thumbs.db. This file is a cache of thumbnail pictures in a directory to speed up the display of thumbnails when viewing a folder in Thumbnail view. This file is a database file and, by design, WAFS/CDP does not mirror databases multi-directionally. These files are constantly recreated and unnecessarily mirrored, resulting in excessive network traffic, which can contribute to performance issues. You should disable this "feature" on Windows workstations in a WAFS/CDP environment and delete all thumbs.db files from your local copy.
To turn off thumbnail caching
Open Windows Explorer. (e.g., on the desktop, double-click My Computer.)
Click Tools > Folder Options. The Folder Options dialog box appears.
Click the View tab.
In the Advanced settings area, select the Do not cache thumbnails check box.
In the Folder views area, click Apply to All Folders.
Click OK to save the changes.