Possible reasons why at may not run for you:

- HAVE you run ./Configure ?  If that fails for some
  mysterious reasons, you can also do a

	make -f Makefile.old install

- You may not have a user or group 'daemon' on your system

- If you find numerous 'try again' error messages in your syslog files,
  you have too many processes running; recompile your kernel for a
  larger number

- Don't forget to put /usr/lib/atrun into root's crontab ONLY
