apt-get problem

[Maury Merkin <merkin@his.com>]

Hi,

I'm relatively new to Debian but have been using Linux as my
home/office os for nearly six years.  I use "apt-get update"
and "apt-get upgrade" a few times a week but last week my
cron script failed (while I was sleeping) and I have not
been able to use "apt-get upgrade" since.  Here's the
message I get:

==== begin ====
[root@merkin /home/maury]#  apt-get --fix-missing upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
The following packages have been kept back
  arts debconf kab kdebase kdebase-libs kdelibs3 kmoon
konqueror konsole kscd
  libkonq3 libqt2.2
59 packages upgraded, 0 newly installed, 0 to remove and 12
not upgraded.
E: Could not get lock /var/cache/apt/archives/lock - open
(11 Resource temporarily unavailable)
E: Unable to lock the download directory
====  end  ====

Of course I have removed /var/cache/apt/archives/lock
several times but that doesn't help.

Any suggestions are appreciated.

Maury