Bug??

[DrD]

Sounds like memory corruption perhaps.

I have had to resort to holding 'ON' while pushing 'Symb' (On + Symb) reset, at times like these; and sometimes even go so far as to hold down the C-F-O keys while turning on the calc, and use option 3 (Format Disk C), when things get so messed up, it seems the calc has become totally haunted by extra-terrestrial, ancient alien astronauts.

Every time that has happened, one of the above returns, seemingly, some semblance of sanity; at least until the next firmware release.

Good Luck,

-Dale-