ClamAV stopped working with ClamAV Module ERROR:: Could not load databases from /var/clamav

[Remco Barendse]

Hi list!

It seems ClamAV got updated on my CentOS 5.x machine but since the update, 
it stopped working.

I see this error from the /var/log/maillog:
MailScanner[16618]: MailScanner E-Mail Virus  Scanner version 4.84.6 starting...
MailScanner[16618]: Reading configuration file /etc/MailScanner/MailScanner.conf
MailScanner[16618]: Reading configuration file  /etc/MailScanner/conf.d/README
MailScanner[16618]: Read 875 hostnames from the phishing whitelist
MailScanner[16618]: Read 0 hostnames from the phishing blacklists
MailScanner[16618]: Using SpamAssassin results cache
MailScanner[16618]: Connected to SpamAssassin cache database
MailScanner[16618]: Enabling SpamAssassin auto-whitelist functionality...
MailScanner[16618]: I have found clamavmodule scanners installed, and will use them all by default.
MailScanner[16618]: ClamAV Module ERROR:: Could not load databases from /var/clamav

I checked /var/clamav it looks ok, also wiped out the databases there and 
then ren freshclam but no luck. Permissions also seem to be ok

Ideas anyone?