moving logon screen (looping) after install command

[KonataFB]

i'm only a novice at linux so forgive my noobyness . (useing xubuntu)

i did the command,
sudo apt-get install linux-image-2.6.31-34-fitpc2 linux-headers-2.6.31-34-fitpc2 xserver-xorg-video-poulsbo mplayer-vaapi mplayer-skins

and now when i try to log in i get a really small pictures moveing fast across my screen in a loop.
(leaves left comes back on right) its definitely my logon screen just really small and moving lol.

EDIT:
I've confirmed the linux display divers for fitpc must hate my tv, works perfectly in my pc monitors HDMI port.

[ypnos]

Your TV seems not to correctly recognize the video mode it gets from the PC. Perhaps its just a refresh rate issue.

Try to change refresh rate with your favourite tool (for example xrandr). Less should be better.