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From: akcs.dnickel@hpcvbbs.UUCP (Derek S. Nickel)
Newsgroups: comp.sys.handhelds
Subject: Re: RAM card errors.
Keywords: Invalid Card Data RAM card
Message-ID: <27851b26:1579.1comp.sys.handhelds;1@hpcvbbs.UUCP>
Date: 5 Jan 91 00:40:07 GMT
References: <7378@plains.NoDak.edu>
Lines: 10

Craig,

I've found that the "Invalid Card Data" error can come from doing a
memory reset and saying "YES" to the recover memeory question.  Any old
libraries that are not quite OK might get recovered and an attempt to
attach them when the '48 is turned on (boots?)

Try archiving and restoring.  That should clear it up.

        Derek S. Nickel