Hi,
You may try the following:
EDITOR=
vi
export EDITOR
crontab -e
<<Enter crontabs>>
Ctrl q! <<--- Command to end crontab file
I don't think there would be any problem, incase the problem still persists, you may use what wempy has mentioned i.e. /var/
spool/cron/crontabs
Regards,
Sumedha