I noticed that the Hulu Desktop has a software update, which appears every time I try to watch Hulu on my Diskless MD. I went ahead and downloaded .deb file to my KDE desktop using the link provided, and went through the installation. After a reboot of the MD, I fired up Hulu, and it started running as normal.
I performed this update on a Diskless MD, and not on my core/hybrid. I didn't want to test this out on my main system, and have to rebuild if something went wrong.
Hope this helps