Try installing Quicktime for the MOV files.

For MPEG files (MPEG2) you'll need to reinstall your DVD decoding
software... probably PowerDVD or WinDVD, whichever came with your PC.
--
Cari (MS-MVP)
Windows Technologies, Printing & Imaging
http://www.coribright.com/windows


"gimmesumknowledge" <gimmesumknowledge@discussions.microsoft.com> wrote in
message news:61073F09-726A-4BE0-AFBE-65EE9111A650@microsoft.com...
> Hello, I recently re-installed Windows XP Pro. Now when I goto certain web
> pages to play something it won't play them this also happen when I tried
> to
> play a mpg file from the net for example the Trailers at
> www.apple.com/trailers before it used to play them now all I got was a
> blank
> screen with a little box in the corner with a red square, a blue triangle
> and
> a green circle. It asks me to install the ActiveX from Quicktime Installer
> I
> do that but still nothing. I have updated my Java the other day but still
> it
> won't work could you please help me.
>
> --
> gimmesumknowledge................