Today I was unable to upgrade either MailScanner Script (2.79-> 2.80) or clamAV (v0.96.5 New:v0.97) from MailScanner FE GUI. Upon launching the upgrade, the scripts indicate that it is downloading the source files and then the page simply times out (in WHM). For the clamAV upgrade, this is the error I get in cpanel logs:
2011-02-19 09:12:13 (1.12 MB/s) - `clamav-0.97.tar.gz' saved [41834871/41834871]
configure: line 2793: printf: write error: Broken pipe
make: *** No targets specified and no makefile found. Stop.
make: *** No rule to make target `install'. Stop.
replace: File '/usr/local/etc/clamd.conf' not found (Errcode: 2)
replace: File '/usr/local/etc/clamd.conf' not found (Errcode: 2)
replace: File '/usr/local/etc/clamd.conf' not found (Errcode: 2)
configure: WARNING: ****** bzip2 support disabled
config.status: error: cannot find input file: `clamconf/Makefile.in'
stdin: is not a tty
No specific error was reported during the MailScanner Script upgrade and I managed to upgrade the script from shell (/usr/src/msinstall /sh install.sh).
Are you running any other virus scanner on your server, such as rtvscand? If you are, it is probably deleting the downloaded file immediately after it has been saved. You need to stop the other virus scanner process and try again.