The typical issues in these series regarding the graphics was weird lines and colors appearing on the LCD panel - completely random and usually right after the warranty expired (1 yr). In this case, you may have a bad motherboard.
thx for the info...a little scared on changing the mb on laptop. hp offered a recall on these after being embarrased by the negative publicity this model wasn't included. but it's a little to old for that anyway (dv2225nr). this will be my first motherboard change on a laptop.
. i have it half stripped down going slow. the plugs are unusual on some of the stuff especially the media bar. with the ribbon type cable. it was miracle i figured how to unlatch it. it's a whole new world compared to desktops.