This seems to be a new Flash Player 10.1 bug that only happens in IE. If a custom cursor is being shown, and you right click, then the system cursor is supposed to be shown, but in FP 10.1 it isn't, so you're left with no cursors. This is happening for 1.x apps too.
I've submitted this bug to Adobe at https://bugs.adobe.com/jira/browse/SDK-26818
A workaround is to set the wmode to opaque, but only for IE since Chrome will show both cursors otherwise.
e.g. In the html template add this after params.allowfullscreen = "true";if (swfobject.ua.ie && swfobject.ua.win) // http://code.google.com/p/swfobject/wiki/api { params.wmode = "opaque"; // workaround for cursor issue - https://bugs.adobe.com/jira/browse/SDK-26818 }
Are you looking for this, or do you mean the hand that's shown while you're panning?
http://help.arcgis.com/en/webapi/flex/apiref/com/esri/ags/Map.html#openHandCursorVisible