Blank maps on FA

Used to be that when I plugged a flight number in to search that the flight plan route and position showed on the map. For some reason (for me anyway) all I get now is a blank blue screen and it will not react to the + or - keys.
Any suggestions?
Thanks

What browser and OS? Can you post a screenshot? Can you please visit flightaware.com/fix and post the output?

A miracle. It works now!!
Thanks