Newbie's install questions -- first of all video

[Benjamin Sher]

Dear friends:

Just installed Kubuntu 5.10. The install looks solid and stable and 
smooth-running (so far).What surprised me right away is the fact that it 
all looked like Debian. I did not see as single sign of Kubuntu or 
Ubuntu in it. In Control Center, it just said Debian 5.10, Linux, 686. 
No (K)Ubuntu logo anywhere. Is that correct?

My first problem is taking care of my video card. During install, I 
chose Vesa, automatic recognition of my monitor and LCD (I have a Sony 
LCD 17 inch monitor). I also have a Nvidia GeForce 2 card. Under 
display, it said that my resolution is 800 X 600. How do bring up my 
video to what it should be? Would very much appreciate your help.

I am downloading the second of the stable, sarge Debian disks (i.e. the 
second of a good dozen)  3.1R2-2. I assume that is the correct disk to 
download and use with Kubuntu 5.10, which has only one disk. Please confirm.

Looking forward to your kind help. And looking forward to enjoying 
(K)Ubuntu.

Thank you so much.

Benjamin