Every time I try to open a second score it opens in a huge format like 2000 font

Every time I open MuseScore the first score opens as normal. When I go to open a second score it opens as a huge score--like I get the very upper left corner. If I leave Musescore and open it again I can open the score normally--but only once. The second one opens in that huge format. Please help--this is getting old.