Fw: Cannot boot computer

[Josef Lowder]

.
I have a Dell GX260 with Intel P-4 2-Gig processor, 512mb ram,
40-gig HD, and XP installed.  After I booted from a Linux live 
CD and started to install, I defragged and then used Knoppix 
QTParted to resize the HD to 22-gig for XP and the remainder 
(about 16-gig) to be used to install Linux. 

However, when I tried to restart the computer to begin the 
installation, I have only a blank screen and cannot even 
get to the bios.  I can't boot from HD, CD, or floppy. 

How can I restore access to the bios and get this thing 
back on track?