After having a very unstable byron we decided to go back to vista one, the installation runs through fine, However after the install is finished the console gets stuck in a boot loop.

Love this desk when its show stable.

Any suggestions on how to get this desk up and running again?

That wouldn't happen to be V2.1.9596 on an original hardware Version1 T2?
If so: viewtopic.php?f=21&t=2683

It is a V1 Tray as I was there when it was first bought. Was one of the first in Australia.
As Spartacus linked, I'd call Jands as it seems to be a reccuring issue for a few people at the moment, and they should have a solution for you. You shouldn't need to reinstall to use V1 by the way, as the Byron ISO has a dual boot option on startup to run V1.

I can say I ran a show last week just fine on a T2 running byron with an original V1 motherboard tray with no stability issues (except one bug i knew about which would cause a crash if the playback window is docked and hidden). Other than that, virtually no stability issues lately with Byron and I run it all year round. What particularly was unstable for you guys over there?

As an educational institution I would definately give Jands a call to see if they will help out with a motherboard/cpu tray upgrade. Unfortunately V2 software is a bit more demanding than V1 and the console will lag up a little bit on old hardware if you are running complex cuelists with lots of cues. See this topic http://www.jandsvista.com/forum/viewtopic.php?f=21&t=2696