"the card was working fine with the x86 version of Solaris 10 (08/07 release, not the open Solaris express version)"
if you can insert the card back in and boot on the Solaris 10 08/07 release and submit with the commands I posted above. then run a Solaris_11/Tools/Installers/liveupgrade20 , lucreate on i.e slice 3 same size as your root slice and run a lupgrade to snv_74 then boot with a kernel option of -kvr in grub. This message posted from opensolaris.org
