Do you have an AVI file encoded with Indeo codec that stopped displaying video when accessed from a share when your client is XP SP2? That's because XP SP2 blocked the content because of a security problem with the codec. If you should access the content from the share, your best bet would be to re-encode with a codec other than Indeo. Desperate times need desperate measures, so, contact Microsoft Developer Support if you can't live with any of the above solutions.