|Water under bridge department, I'm sorry to say:|
I became very frustrated with all the passwords required for everything, and this was recommended. It's free. Other than that, (rarely), motherbd has a jumper to default the bios (but be sure to make record of all settings before defaulting). The security paranoia has probably put an end to that, however. Last gasp, try contacting compaq customer support, or booting from the OEM CD/DVD to see if there's any options.