I hate FCs on startup. It doesn't tell you who done it. Restoring LauncherPro with data was what caused it for me. I deleted data, restarted and still had some for a few hours then it cleared up, but the first restart was good showing that was it. Either that or look for a service that's not running and should be or uninstall anything (3rd party) that does start on boot. If that doesn't work... reflash yet again.