still nothing from support, but i managed to find a work around for my problem.
it seems that the os upgrades introduce a new set of file permission requirements for cgi scripts. if you have cgi scripts owned by a group you have created in control panel, you should try changing the group to the umbrella group that dreamhost created. Ironically, for me, this actually loosens the permissions on my files, but at least things are working again.
my cgi is now responding again, does anyone have a fix for support?