BIOS, and GRUB bootloader...

I have Phoenix First BIOS Rev. A06 installed on my Inspiron 5100.  I have deleted my Linux partition, and now I cannot access the system.  I have searched and searched the internet, and now realize I need some help.  When I power the computer on, I get the POST, but it immediately goes to the grub bootloader.  I have seen posts that say to run recovery console, but I cannot get past the bootloader.  When I press F2 at power on, it does not let me in to the BIOS to change settings.  I need to change the boot sequence for the computer, but have no access to the BIOS.  I still have the windows partition, but no access.  I have tried to make a bootable cd, but can't get it to run.  Are there any other options?    Does anyone know another way to get in to the BIOS?  Please let me know.