X Windows and Gnome Problem - HELP!!

[Tim Woodward <twoodward@clara.co.uk>]

Hi

I have installed Debian 2.2r4 on my system and have so far got to the 
point where X Windows is running with the Gnome version that comes with 
the Debian pack. The problem i have now is that i have changed my 
graphics card and installed the XF86_SVGA server, and when i boot up it 
goes straight into X Windows but the mouse is disabled. The screen is 
in 640x480 so looks crap, and i can't exit back to the original prompt 
screen. If i knew how to bypass X Windows upon boot-up i could re-run 
the XF86Config which may solve the problem. Can anyone help me sort it? 
Also, (i am new to all this), i've downloaded KDE from the Debian 
website, and would like to know: Is it just a window manager or an 
entirely independant X Windows type program?

Thanks in advance

Tim.