Lap top will go any futher than entry screen...

This is a normal set of messages for a computer that is configured to attempt to boot off of a network server. Most home computers and laptops don't normally do this. If you never saw this before, booting from the network is probably the last try the computer makes before giving up. Basicially it is telling you that there is no valid boot device to start the computer from. It used to use your hard drive, but now it cannot because it has been disabled in the BIOS or the hard drive has died. You can check this by hitting the key to enter the BIOS Setup program (generally F10 or Del, it tells you when it is booting up) and making sure that the system does see your hard drive properly in the BIOS and ensuring that it is either first or second in the boot order.