I tested with build 407 and the displays will not render. I don't know if it is due to being a Dev. build and has not been implemented yet or if it is an unknown issue yet. So if you guys are aware you can ignore this report.

Can't reproduce. For me they work fine.

I managed to see errors from MultiMC's console. I uploaded the log, perhaps that can help? http://www.mediafire.com/view/?22cabl6smlia4ed

Ok thanks for that. I now know where the bug is thanks. will be fixed soon.