Thanks for hints.

Reviewing the situation, I see that problem is MSNBC unique as far a I
can tell. I can view videos on my Yahoo home page from within the
Firefox browser. So far, it is only the MSNBC page videos that do not
come through, and it is only the links associated with the MSNBC pages
that claim I need to install IE6 (which is already installed and
up-to-date).

I've run through your list of possible causes. At this point, my
position is that if I must compromise my setup to view MSNBC, then I'll
just give up on accessing MSNBC.

Re
(1) I don't use zone alarm
(2) Norton System Works is installed. I need to check settings.
(3) I don't have specific add blocking software.
(4) I have discontinued using my router to block specific sites.
(5) I have some restrictions on cookies, but I don't think its problem
(6) I do have Firefox set to block pop-ups. I'm not about to disable.
(7) I don't use web washer
(8) My registry entry shows Mozilla/4.0 (compatible; MSIE6, Win32)


PA Bear wrote:
> (Courtesey of MVP Mike Burgess) Several of these are known to cause the
> problem:
>
> 1) Zone Alarm Pro [Private Header Info - enabled?]: Reset "Ad Blocking" and
> "Cookie Control" to "medium" "Mobile Code Control" = Off
>
> 2) Symantec (ISS\NIS) [Enable Browser Privacy - enabled] Active Content -
> "Allow All Scripts To Execute". Problem: some sites cannot detect the
> 128 bit
> encryption Solution: Completely remove and reinstall NIS.
>
> 3) Any "ad blocking" software that blocks "http_referer" or contains
> entries
> that are blocking access to the desired site.
>
> 4) HOSTS file that contains entries that are blocking access to the desired
> site.
>
> 5) Cookie blocking software blocking "required" Cookies.
>
> 6) Pop-up blockers stripping header\url info.
>
> 7) WebWasher Standard Filter/URL Filter
>
> 8) Make sure the following Registry entry is not corrupt:
>
> [HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Internet
> Settings] "User Agent"="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT
> 5.0"
>