You have 1/2 answered your own question!

Uninstall Pogo games if they are causing a prob. As Andre says, post your
Graphics and RAM; your hardware may not be for a Gaming computer.

Uninstall McAfee, and just use Live One Care.
A point to note; you CAN NOT run 2 antiviruses on a computer at the same
time, unless you want heartache!

"andy" wrote:
[color=blue]
> When I turn on my computer, I have 5 names on Vista...After the computer
> boots up and I click on one of my user names, it goes to that name and loads-
> in the process of loading, the screen goes black- flashes off-goes on and you
> see the desktop and then goes black again and then it fully loads.
>
> I use McAfee Antivirus..I downloaded POGO.com games and that is when all
> hell broke loose...Then I downloaded Windows Live One Care on a trial basis...
>
> I have no idea what to do to make this work better and faster...
>
> I had a new hardrive put in a month ago and the computer is only 6 mos old.
>
> HELP
>
> Andy[/color]