Avast EP toolbar not automatically displaying in IE8; How to resolve?

Good morning everyone,

 My default browser is [b]IE8[/b], but I do use Firefox about 50% of the time as well.  Since acquiring EP, I've had no problem with the EP toolbar automatically being displayed when I log-on to IE8 or Firefox...until today.  For some reason, when I go on IE8, the only way I can get the EP toolbar to be displayed is to click on the two small "[b]>>[/b]" (the [i]greater than [/i] symbols) shown on the far right of the Command Bar  near the top of the screen, then click on the EP link shown in the drop-down menu.

(EP toolbar does still display automatically when using Firefox).

Within the EP menu, Options > Login Browser, I have the “default browser” box checked.

My question: How can I resolve this problem so the EP toolbar is automatically displayed when logged on to IE8, as it was before?

UPDATE: I finally discovered the source of the problem. I did not have the “Enable third party extensions” box checked in the Internet Explorer Advanced options.

Regards,