CUDA error

Get:1 http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1204/x86_64/  cuda-extra-libs-5-5 5.5-22 [126 MB]
Get:2 http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1204/x86_64/  cuda-visual-tools-5-5 5.5-22 [280 MB]
Fetched 406 MB in 4min 28s (1,513 kB/s)
(Reading database ... 66528 files and directories currently installed.)
Unpacking cuda-extra-libs-5-5 (from .../cuda-extra-libs-5-5_5.5-22_amd64.deb) ...
Unpacking cuda-visual-tools-5-5 (from .../cuda-visual-tools-5-5_5.5-22_amd64.deb) ...
dpkg-deb (subprocess): decompressing archive member: internal gzip read error: '<fd:4>: incorrect data check'
dpkg-deb: error: subprocess <decompress> returned error exit status 2
dpkg: error processing /var/cache/apt/archives/cuda-visual-tools-5-5_5.5-22_amd64.deb (--unpack):
 subprocess dpkg-deb --fsys-tarfile returned error exit status 2
No apport report written because the error message indicates an issue on the local system
                                                                                         Errors were encountered while processing:
 /var/cache/apt/archives/cuda-visual-tools-5-5_5.5-22_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)