Keyboard problems during installation

Hi! I am trying to install Solaris 10 on my Sony Vaio PCG-K115M machine, 
Installation Assistant starts well. It identifies all the system, loads the 
kernel and configuration files. Then it starts the X server where the screen 
asks me to choose the language. 0 - English, I'm trying to type, but the 
keyboard doesn't work... I have tryed to interrupt the device search process, 
it writes that no driver found for this keyboard. There is also no generic 
keyboard configuration supported... It is probably possible to pass some 
parameters for the keyboard detection process. But I know nothing about it. :( 
Could you please help me to proceed with the installation?
 
 
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