Mail-shield problem?

[kumapon]

Hello,
The Kernel_task is rapidly increased if I switch the mail-shield to ON, and therefore all operations slow down...
Is there anyone who have the same situation here?

avast! Mac Free Version 7.0(37431)
iMac 2.4GHz Core2Duo(4GB)
Mac OS X 10.6.8

[tumic]

Never seen such issue. Are there any interesting messages in the system log (/var/log/system.log)? Is this permanent or only if there is an active IMAP/POP3 connection? If it happens only during a connection, what server are you connecting to and what mail client do you use?

[kumapon]

Thank you for your response! Due to your advice, I found a lot of errors. (Error connecting to AV daemon: connect(): Connection refused)
And it may be caused by my e-mail settings...   
I am using Apple Mail with plural accounts (IMAP/POP3). So, I will check them one by one.

Thank you so much again!

[tumic]

This looks like the scan engine (daemon) is broken. Are there any launchd messages in the system log about being unable to start the daemon?

[kumapon]

Hi again,
Is this what you mentioned? >> com.apple.launchd[1] (com.avast.account[16330]): Exited with exit code: 2

Should I re-install avast anyway?

[tumic]

Is this what you mentioned? >> com.apple.launchd[1] (com.avast.account[16330]): Exited with exit code: 2

No. com.avast.account is a tool for managing the avast! account which does not run permanent. In other words, there is no problem with it.
Only com.avast.MacAvast.MAD related messages are relevant.

Should I re-install avast anyway?

You can try it, but a better way would be to find what went wrong. Also, a reinstall may not solve the issue.

[kumapon]

Well, I never found any other errors which you mentioned.
So, I see this situation for a while as is.

Thanks anyway!