this only happens on the device and not in the simulator.
i am making the call in webViewDidFinishLoad.
i have tried making the call multiple times in a row with no better results. it seems that whatever value the particular webview scrolls to is the farthest it is willing to go when using the scrollto call. there is no problem when giving it a lesser value to scroll to. it's just if you pass that magic number, whatever it is for that webview, it will go no further.