sources.list

[G.Paulo <linuser@terra.com.br>]

Pessoal:
	Tentei dar um apt-get update, mas obtive um erro meio sinistro. Está na listagem abaixo. Só pra informação, meu sources.list contem o seguinte:
	deb http://security.debian.org/ stable/updates main
	deb http://linorg.usp.br/debian stable main contrib non-free
	deb http://ftp.br.debian.org/debian/ unstable main

**** erro do apt-get update ******
gert:/home/galileu# apt-get update
Get:1 http://ftp.br.debian.org unstable/main Packages [3175kB]
Hit http://linorg.usp.br stable/main Packages                                  
Hit http://linorg.usp.br stable/main Release                                   
Hit http://linorg.usp.br stable/contrib Packages                               
Hit http://linorg.usp.br stable/contrib Release                                
Hit http://linorg.usp.br stable/non-free Packages                              
Hit http://linorg.usp.br stable/non-free Release                               
Hit http://security.debian.org stable/updates/main Packages                    
Hit http://security.debian.org stable/updates/main Release
Get:2 http://ftp.br.debian.org unstable/main Release [82B]                     
Fetched 3175kB in 1m57s (27.0kB/s)                                             
Reading Package Lists... Error!
E: Dynamic MMap ran out of room
E: Error occured while processing openoffice.org-l10n-sv (NewVersion1)
E: Problem with MergeList /var/lib/apt/lists/ftp.br.debian.org_debian_dists_unstable_main_binary-i386_Packages
E: The package lists or status file could not be parsed or opened.

[ ]'s
Paulo.