I can only lead you as far as the front page of franks site with the link above near the top. Under the 1.1 verison of displayserver there is something sayng kernal patch i have no idea what so even what it is.

If you are getting support for display server i vote for 1.1 as i can't make friends with 2.0
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P.Allison fixer of big engines Mk2+Mk2a signed by God / Hacked by the Lord Aberdeen Scotland