Sudden calculator crash

[folkdeath95]

DB50X v0.9.14 on DM42n.

Notice some strange behavior with the Constant Menu:
-typing "pi" (F1 in Maths Constant Menu) displayed "GET"
-typing "e" (F2 in Maths Constant Menu) displayed "SAME"

I was trying to check other constants ("c" in Physics was OK) when the calculator crashed.

Hard Fault
r0=200a16b8 r1=0000002c
r2=200a16b8 r3=ffffffff
r12=280013e4 lr=0814656b
pc=fffffffe psr=210f0000

Hope this helps.