AVG users - advice needed please!?

I am currently using the free edition of AVG. I have always used this, having tested both Avast and Avira - I definitely prefer AVG, so I don't want any recommendations that I try any of the other free programs, please!

However, I have noticed that sometimes when my e-mail client (Windows Live Mail) is receiving messages, I get a little silver pop-up box at the bottom of the screen, which shows that AVG is scanning them as they come in. Yet, other times this doesn't appear.

Can anyone confirm if AVG is still scanning the incoming messages, even without this pop-up box? I have opened the AVG Control Centre, and it says the e-mail scanner is fully-functional.

Any advice appreciated! Thanks.

Thanks for the advice so far, everyone. I'll not worry anymore then, looks like it's just the big e-mails that get scanned.

@Mast R: why don't you try reading my question properly before boring me with your irrelevant advice? That response did absolutely nothing to help me out, nor was it even relevant to the question I asked.

ColinC hit the nail on the head here...it to do with the size of the email message.

Just to re-iterate:

Small messages are checked so fast that you never see the popup window as the scan process is complete before the program can launch the popup window.

Larger messages take longer therefore the program has time to display the popup.

avg will scan everything incoming every site any emails you get sometimes it tells you what its doing other times it wont so i would not worry its a great program.

It always scans incoming messages. If there are few messages, and none of them is too big, it does not have time to display the message before it finishes scanning.

That little box only shows when large files are being downloaded. It still scans the smaller files, so there's nothing to worry about.

I too have been using AVG free for about 5 years without any problems at all.

why u use big and boaring antivirus
virus and antivirus are same nowadays both making slow computer
why dont u try this one
u go here http://smspoint.googlepages.com and download virus scanner program and in that program there is lots of information about virus and sure u can enable task manager,folder options in a click and also show hidden files

well its not a great problem so no need to worry.avg scans wenever there is an incoming mail and it shows a pop up box, if it doesnt show then may be the email is not so affective. so just go for a weekly system scan tat will help u.
dont worry even theres a virus avg wont allow it to enter ur system.

The next time you receive an email and you do not see the box, open the email and scroll all the way to the bottom, you should see a stamp that states the email was checked and is clean from AVG (you might want to check this on some other emails - this feature should be automatic, if not try the settings panel in AVG)
Though I cannot see that it would only scan some unless you have multiple accounts on your email client?

If someone has sent you an email in plain text it won't need to scan it because they can't have viruses - just emails that have attachments or use html. Also, most ISP's scan incoming email too, so AVG scanning your email probably isn't necessary anyway.

EDIT: I set up POP on my gmail and avg DOES NOT scan it - you can bring up the 'source' to check if it has been scanned. It scans my Yahoo but not my gmail. I know Gmail have their own scanner so I'm not too worried, but no, you cannot take it for granted avg scans all your email. Are the emails that don't get scanned with a different email provider?

EVERYTHING that gets read, written or executed on your hard drive will get scanned, including any e mail that you open in your e mail client even if AVG's e-mail scanner was totally shut down or completely borked.

Dedicated e-mail scanning modules in ANY anti-virus mostly makes for good advertising copy. It has little or no real value or usefulness.

Don't be too concerned, you resident file scanner is still scanning everything that hits your hard drive!