I had exactly the same issue yesterday on a 32-bit system with 32-bit libqtgui4 package. I switched from the UK mirror to the French mirror and then everything was fine.
Today I experienced a Hash Sum mismatch on a different machine, amd64. "Fetched 34.3MB in 60s (566kB/s) Failed to fetch http://ftp.uk.debian.org/debian/pool/main/q/qt4-x11/libqtcore4_4.6.3-1+b1_amd64.deb Hash Sum mismatch E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?" I had already run apt-get update so that advisory is superfluous. I changed mirror from ftp.uk to ftp.fr and this fixes the issue. There is something badly wrong with the UK mirror. It has had downtime and very poor performance over the last few months, and has also been out of sync with other primary mirrors on more than one occasion. Now there are apparently corrupted packages in both x86 and amd64 sections. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

