Hi, I have upgraded to new version of apt package (from version 0.8.15.10 i to 0.9.2). Apt-get still works correctly, and aptitude also works correctly. Very nice. But, I don't undestand why. The upgrade of the apt packages was pending because the package libept1 required the version 0.8.15 of apt package. So, while I'm not using libept1, I have upgraded nicely apt. And thanks for the suggestion. Cheers -- Gilles Crevecoeur