Could this be the problem?
Error message after you install a Windows Internet Explorer 7 update from
Windows Update or from Microsoft Update: "Webpage cannot be displayed"
http://support.microsoft.com/kb/942818
From Robear Dyer (PA Bear)
If tweaking your third-party firewall's settings don' help, try the
following:
1. Disable your anti-virus application, any real-time protection provided by
an anti-spyware application (except for Windows Defender; includes Spybot
Tea Timer, SpySweeper Guards, AVG AS guard.exe, etc.), disable any
third-party firewall AND enable the Windows Firewall.
NB: If you're running ZA Free firewall, you may need to uninstall it instead
of disabling it. You're "working without a net" now: Don't to ANYTHING else
online (e.g., browsing; reading email; chatting) except #4 below until your
anti-virus application has been re-enabled!
2. Uninstall "Security Update for Windows Internet Explorer 7 (KB939653)"
[or "Security Update for Windows XP (KB939653)"] via Add/Remove Programs
(make sure Show Updates box is checked at top right) and reboot.
3. Re-do #1 above.
4. Go to
http://windowsupdate.microsoft.com and install any Critical Updates
offered. If "Root Certificates" update is listed in the Optional Updates
category, you might install it, too, to take full advantage of IE7's
additional security.
5. Reboot > Make sure everything in #1 above is enabled again and, if
applicable, disable the Windows Firewall and enable your third-party
firewall.
"lakota" <> wrote in message
news:4310870D-A1B6-48D4-8FAB-...
>I don't get any message.When I click on the Internet icon it says it is
> connecting and it looks like it is going to my home page but the only
> thing
> that comes up is that it cannot display that page and gives a list of
> reasons
> like trouble with site, not connected to internet,etc. If I run a
> diagnostics
> it doesn't find a problem. If I disable the Avast, everything works fine.I
> tried disabling the Avast and reloading my McAfee and no problems except
> when
> I open my mail I get amessage that McAfee encountered a problem and had
> to
> close.I didn't have all this trouble before installing Avast.
>
> "Frank Saunders MS-MVP IE,OE/WM" wrote:
>
>> "lakota" <> wrote in message
>> news:84A43DC4-F091-469E-AED8-...
>> >I was told that the problems with my Windows mail was because of my
>> >McAfee
>> > AV program. So doing what I was told I needed to do, I installed the
>> > Avast
>> > AV
>> > program. Now when I try to connect to the internet, I get a page saying
>> > page
>> > cannot be found. I contacted my tech support and my computer is
>> > connecting
>> > to
>> > the internet but nothing happens. The only way I can do anything, like
>> > now(which is a really stupid thing to do) is to disable the Avast. Why,
>> > if
>> > this is the AV that is recommended am I having problems getting on the
>> > internet? I never had this problem with McAfee. What am I supposed to
>> > do.
>> > There are so many places here that blame everything on Norton and
>> > McAfee
>> > and
>> > say that there is not a Vista problem. Well is this an Avast problem? I
>> > need
>> > help now to fix this problem. By the way, I have uninstalled my McAfee
>> > so
>> > if
>> > this Avast doesn't work, then what? I did what I was told to do to make
>> > this
>> > Windows Mail and Vista work.
>>
>> I use Avast but I didn't install the email part. I've never had a
>> problem
>> (two different machines).
>>
>> Do you get any error message?
>> Can other programs connect?
>> Can you connect if you temporarily uninstall Avast?