OK - there is a serious bug and l just found it - which explains how people are getting up to 5000 levels as recorded in the Hall of Fame ! Of course now all the fun and struggle has gone out of it too ! Will carry on playing and when l get fed up will log my impossibly high (cheating) score too.
Am addicted to this game and it works well - but it's a bit frustrating when you join two bonus tiles together and only get one point. The new system of awarding bonuses from color and symbol groupings makes it very difficult to get the bonuses you have to have to get to higher levels and still can't figure out sometimes how l got some of them ! Anyway it's still a great game - thanks