Acer Acros Upgrade

I'm trying to change out my 1 gig hard drive for a 9 gig HD. When I set the BIOS for AUTO for hard drives it captures the correct cylinders, heads and sectors but the size will not go pass 2015 Mb. The COMS setting info that appears before loading an OS reports the correct size but when I try to load windows it tells me I need to reformat. I've tried the HD on other computers and have no problems. I also tried to flash the BIOS. Is there something wrong or I'm I missing it!!!!!(Acer Acros P-100 Bios v2.0)

HELP!!!!! <IMG SRC="smilies/confused.gif" border="0">

Most of an old motherboards have 8,4Gb BIOS limitation,even after latest BIOS update. <IMG SRC="smilies/eek.gif" border="0">

Probably You should use program like Disk Manager (EZ-Drive).You can download that program from HDD manufacturer's site. <IMG SRC="smilies/frown.gif" border="0">