Images not found

I have several databases for cataloguing photographs that I share with associates. The databases use FMP10 and run on my desktop, with both Filemaker network sharing and IWP activated. My assistant uses the databases by network sharing and some other colleagues access them via IWS as search-only users. The databases contain about 30,000 records for TIFF and JPG images. The images are in the /web directory.

Everything was peachy until last week when my computer crashed. After a new install and restore from backup, all is working fine EXCEPT it is now not possible to bring up an image in a browser window when accessing the database via IWP.

The databases themselves are accessible, and run as normal, but when a user attempts to access an image they get a 404 message screen saying the image is not there! The images are in the correct directory (/web) and none of the scripts have changed.

Any suggestions why this might be happening? It's driving me nuts!