Could not perform immediate configuration on 'libc6'. Please see man 5 apt.conf under APT::Immediate-Configure for details. (2)

[Harshad Joshi <firewalrus@gmail.com>]

i have installed debian 6 on a dell vostro 1550.


while updating software through synaptic or apt-get, i get this error
 

Could not perform immediate configuration on 'libc6'. Please see man 5 apt.conf under APT::Immediate-Configure for details. (2)

i am using amd 64 kernel. details of uname -a are as follows

Linux harshad 2.6.32-5-amd64 #1 SMP Wed Jan 12 05:14:59 UTC 2011 x86_64 GNU/Linux


how to resolve this issue? i cant install libc6 or libc6-64 edition..I have a debian i386 dvd, ie debian 1 dvd out of total 6. do i need to use 64 bit version for vostro laptop? 
 




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Harshad Joshi