Ubuntu 8.04 replaced my SXCE grub setup; I did what pdamato suggested (added equivalent of below entry to my /boot/grub/menu.lst) and now selecting it from Ubuntu grub redirects to the Solaris grub. Thanks for the simple fix.
># /dev/sdb1 >title OpenSolaris 2008.11 b96 >root (hd1,0) >chainloader +1 -- This message posted from opensolaris.org
