On my PC, "My Documents" is mapped to a network drive. Whenever the network drive is disconnected, Photoshop throws an error when trying to bring up the "Save for web" dialog box. The error is: "The operation could not be completed. The system cannot find the path specified." When I click OK on this error message popup, the popup goes away and nothing else happens. The "Save for web" dialog is not accessible.
This is especially a problem when I travel with my PC and need to use Photoshop on the road, since I cannot connect to my network drive for My Documents. I understand that the system cannot find the path specified, but it shouldn't bail on the "Save for web" dialog because of it. Use a different default path. I'm not sure why it's looking for that path anyway, since it happens even when my last saved file isn't in "My Documents".
Had same problem and found the foolowing solution. All you need to edit registry entry: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders The entry for "Personal" was set to an external that was not connected so you can set it to a location on HD (e.g. %USERPROFILE%\Documents or any other) This worked for me