chkutmp failure

Binary package hint: chkrootkit

# /usr/lib/chkrootkit/chkutmp
 The tty of the following user process(es) were not found
 in /var/run/utmp !
! RUID PID TTY CMD
! lupe 13395 pts/0 /usr/bin/mutt
! lupe 13266 pts/0 /bin/bash -i /home/lupe/scripts/muttloop
! lupe 13398 pts/3 /usr/bin/mutt -f Incoming/Spam
! lupe 13270 pts/3 /bin/bash -i /home/lupe/scripts/muttloop -f Incoming/Spam
! lupe 13396 pts/4 /usr/bin/mutt -f Incoming/Spam.sure
! lupe 13271 pts/4 /bin/bash -i /home/lupe/scripts/muttloop -f Incoming/Spam.sure
! lupe 2673 pts/5 /usr/bin/mutt -y
! lupe 13272 pts/5 /bin/bash -i /home/lupe/scripts/muttloop -y
# ls -l /dev/pts/0
crw--w---- 1 lupe tty 136, 0 2010-04-28 21:45 /dev/pts/0

Only processes started from a launcher are affected. The command is
gnome-terminal --geometry=197x66+0+27 --tab-with-profile=mutt:INBOX --tab-with-profile=mutt:Octogon --tab-with-profile=mutt:Spam.perhaps --tab-with-profile=mutt:Spam --tab-with-profile=mutt:Spam.sure --tab-with-profile=mutt:Misc --tab-with-profile=Default

And only some of those. Here is the process tree:

lupe 13252 1 0 Apr27 ? 00:01:39 gnome-terminal --geometry=197x66+0+27 --tab-with-profile=mutt:INBOX --tab-with-profile=mutt:Octogon --tab-with-profile=mutt:Spam.perhaps --tab-with
lupe 13266 13252 0 Apr27 pts/0 00:00:00 \_ /bin/bash -i /home/lupe/scripts/muttloop
lupe 13395 13266 0 Apr27 pts/0 00:00:01 | \_ /usr/bin/mutt
lupe 13268 13252 0 Apr27 pts/1 00:00:00 \_ /bin/bash -i /home/lupe/scripts/muttloop -f imap://<email address hidden>/INBOX
lupe 13530 13268 0 Apr27 pts/1 00:00:01 | \_ /usr/bin/mutt -f imap://<email address hidden>/INBOX
lupe 13269 13252 0 Apr27 pts/2 00:00:00 \_ /bin/bash -i /home/lupe/scripts/muttloop -f Incoming/Spam.perhaps
lupe 13400 13269 0 Apr27 pts/2 00:00:00 | \_ /usr/bin/mutt -f Incoming/Spam.perhaps
lupe 13270 13252 0 Apr27 pts/3 00:00:00 \_ /bin/bash -i /home/lupe/scripts/muttloop -f Incoming/Spam
lupe 13398 13270 0 Apr27 pts/3 00:00:00 | \_ /usr/bin/mutt -f Incoming/Spam
lupe 13271 13252 0 Apr27 pts/4 00:00:00 \_ /bin/bash -i /home/lupe/scripts/muttloop -f Incoming/Spam.sure
lupe 13396 13271 0 Apr27 pts/4 00:00:02 | \_ /usr/bin/mutt -f Incoming/Spam.sure
lupe 13272 13252 0 Apr27 pts/5 00:00:00 \_ /bin/bash -i /home/lupe/scripts/muttloop -y
lupe 2673 13272 0 21:41 pts/5 00:00:00 | \_ /usr/bin/mutt -y

You can see that pts/1 and pts/2 are missing.

So this is really strange. I have no idea what is happening here. The effect is new with Lucid.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: chkrootkit 0.49-3
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Wed Apr 28 21:51:21 2010
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: chkrootkit