have you ever withnessed calculators not working anymore due to corrupted memory?

[pier4r]

Dave with corrupted I mean "consistently reporting wrong (previously stored) data from all or certain memory sectors, even after a reset" or even not working at all.

Why is illogical to use the rom? I mean libraries are stored there (at least for 48,49,50) and if one needs extra space as temporary working space the rom is the only viable way. Surely it is not common (I can barely fill the memory of my 50g), but someone may have done it. Especially the 48 series as far as I know is pretty low on ram.