update error in 11.04

[Dave Stevens]

Hello All,

I was running package updates and had to interrupt the process. Now when I try 
to repeat this process I get the message below:

Could not initialize the package information

An unresolvable problem occurred while initializing the package information.

Please report this bug against the 'update-manager' package and  
include the following error message:

'E:Encountered a section with no Package: header, E:Problem with  
MergeList  
/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_natty_partner_binary-
i386_Packages, E:The package lists or status file could not be parsed or  
opened.'

I don't know who to report this to - who is responsible for package-manager - 
and also don't know how to reinitialize package manager to make it work again.

Suggestions?


TIA


Dave


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