We have a Server 2003 network with about 30 client computers. Intermittently, clients seem to lose connection to network resources intermittently any where fro a few seconds to a mintute or 2. In the bottom right corner a small computer icon appears. If they right click it and click "Synchronize Now" then it seems to be ok. This occurs with a few computers at a time and not always the same clients. However, all clients have experienced it throughout the week at one time or another. ANy ideas as to why this is occurring?