i am running xp media center on a gateway pc (see below).

i have an ati x1300 video card with 2 outputs. one to the monitor and the other to the tv in a "mirror" setup so i can watch all the following both on the monitor AND the tv.

when i boot up, the splash screen is perfect on both. i then have a GO-BACK screen (it's a full hard drive restore utility) which is also perfect on both.

when i get to the windows splash screen and desktop, the tv is perfect but the monitor is completely white. slowly but surely horizontal lines (pretty much from top to bottom) resolve into the desktop.

my power saver shuts the monitor off after 20 minutes of no-use. when i move the mouse to get it on, sometimes it's fine but sometimes it's back to the all-white screen and then to the slow resolution.

i'm was thinking monitor but then why would the initial splash screens be okay and only the windows like this. i updated the drivers 2 weeks ago but this did not appear until last week.

so i'm stumped.

any thoughts?

thanks in advance.

terry