Verry unhelpfully it just said 'error'

Neither the Reports or Report Manager would work, I've switched it back again just for the moment so I can't actually see the errors.

Not much help, just thought someone might know if R2 causes problems because the config files do appear to contain differences, not this would necessarily effect anything.

In fact on changing everything back I can't get back in to the Report Manager which is a bit odd surely these are just plain text files that should be easily corruptable?