Hi, This patch implements the first page of the options dialog, including overlapping instances, here documents and haskell 98 mode. This does allow changing between haskell98 and not at runtime, but I have marked it with the warning "requires restart". This is not entirely true... If you load a non-haskell 98 doc with +98, it fails. If you then go to options and set -98, then either :l or :r, it succeeds. If you then go to options and flip back to +98, :r succeeds (wrongly), but :l fails. Thanks Neil