crwdns2934241:0crwdne2934241:0 David Horner
crwdns2934249:0crwdne2934249:0:
Technical support just helped me fix the same issue. You need to reset the calculator. Press the "2nd" key followed by "0". Arrow down to option 2 "yes". Problem fixed.
crwdns2915684:0crwdne2915684:0:
open