As per the Rankings issue on 29 and 30 jan , is anyone still getting the rankings fluctuation and sudden drop issue with no rank keywords on some pages ?
There is an ongoing discussion about serps/ranking changes here where people compare notes and observations of Google serps changes: [webmasterworld.com...]
That Welcome page I linked to can help you learn more about how to use the settings and features of the forums, it is a good place to find the how-to stuff here.