yum problems

upgrading after a while I encountered these problems:

[...]
Trying other mirror.
http://ftp.crc.dk/fedora/linux/releases/12/Everything/x86_64/os/Packages/privoxy-3.0.13-beta.1.fc12.1.x86_64.rpm: [Errno 14] PYCURL ERROR 6 - ""
Trying other mirror.
http://fedora.uni-oldenburg.de/releases/12/Everything/x86_64/os/Packages/privoxy-3.0.13-beta.1.fc12.1.x86_64.rpm: [Errno 14] PYCURL ERROR 6 - ""
Trying other mirror.
ftp://ftp.pbone.net/pub/fedora/linux/releases/12/Everything/x86_64/os/Packages/privoxy-3.0.13-beta.1.fc12.1.x86_64.rpm: [Errno 14] PYCURL ERROR 6 - ""
[...]


these 2 commands solved my night:

# yum clean all

# yum check-update