Is
thisthe computer?
How are you doing the partitioning?If you're using the installer's partitioning tool it may be seeing one of those ILM non-dos partitions.You may want to view the partitions with fdisk from a win9x bootdisk.If there are any partitions there,delete them and try setup again.(Unless you are trying a dual-boot,of course)
How old is the Compaq?The older ones have a non-dos partition that holds the IML bios.
What Linux distro and version are you using?
HTH
lynch