Problem with notebook

[Rida]

Hi everyone!
my name is Andrea and I'm a newbie user of linux...
I want to change definitely to Linux from Windows...

So my problem is:
I have an Acer Aspire 1960 notebook (link above)
http://global.acer.com/products/notebook/as1690.htm
and when I tried to install the Kubuntu Linux at the end of installation 
(after the reboot) the system alert me that there is an
PnPBIOS problem
and when I have to see the Kdm login, I don't see nothing...

I was thinking that was a problem of my card video but the xorg.conf 
it's correct...

Who knows the solution?!?!

thanks in advance...

p.s. sorry for bad english...