Hi, I'm having this situation when using lastcomm and sa commands on Slackware 10.1

Reading the description from the acct package, I already did what they say to activate process accounting, which is creating the pacct file (touch /var/log/pacct as root) and using the accton command to activate it (accton /var/log/pacct), so far so good, pacct is keeping updated, but when I use lastcommn to print information about previously executed commands, all I get is something like that:

`? root ?? 0.33 secs Wed Dec 31 19:00
`? root ?? 0.00 secs Wed Dec 31 19:00
`? root ?? 0.33 secs Wed Dec 31 19:00
?^ root ?? 1.05 secs Wed Dec 31 19:16
`? root ?? 0.00 secs Wed Dec 31 19:00
`? root ?? 0.33 secs Wed Dec 31 19:00

and printing those '? '? ? gibberish instead of the command names as intented (as read on the manual page from lastcomm), I'm searched for similar situations, not luck there, does anyone has any idea what is wrong about this? am I missing some functionality into the kernel?

Any ideas would be really appreciated.