Lenny Net Installer issue

[Martin Richardson <Velcro1@gmail.com>]

Hi everyone,
                   I am trying to install Lenny on my workstation. I 
have burnt a net install image to disc (LennyBeta2). My pc will not boot 
on this disc. I get the message that I have a non system disc. If I use 
a second cdrom drive that is in my workstation I get the same error 
message. If I boot it on my wifes pc it is OK. So I put an old FreeBSD 
installation disc in my drive and reboot, it will boot . Why won't the 
lenny disc boot on my workstation???

Martin.