I would like to bring to your attention the problem I am facing due to Avast AV Free on Mac OSX Snow Leopard [10.6.8]
I have lately noticed that on reboots, Login Window does not show up thus preventing me from logging in. I have to go into safe mode, fix file system errors/repair permissions? before it works again.
Upon further investigation I found that whenever the above condition happens, the Avast App fails to launch/disabled and asks me to fix it or reinstall/uninstall.
I am able to reproduce this by issuing "purge" command in the terminal which then leads to Avast AV App Corruption and subsequently no Login Window upon reboot.
Can somebody help.. TIA.