It sounds as if the hardware problem caused the LASTEXIT SAVE/GET file
to be damaged. cd to your disk one data area and do a
ls -laF SG*
I suspect the file SGDuuu001.uuu; where uuu is your user number in
extended hex has been truncated. You can simple rm it and then when
aips starts up it will start with a default vocabulary and not have
this problem.
Eric Greisen