Not to be roude, but 30 minutes is nothing. I think everybody here had the same problem, in past... Well at least i got such shitty situations. And when it happens, i go for a shower (not cold), retern, and start making again :) . Anyway i am still waiting for a editor that have a recovery system just like Office XP :) . Very cool tought!
the only thing that pisses me off is when I made large parts of decoration, and the editor crashes then. because you never get a copy of those spots that were the best by hazard.
that's why I save all the time while decorating^^
Basically what I did was add ridges (line of high ground) around the mains and inbetween some of the islands and move the islands around so they have equal balance/imbalance. I added a bunch of details and it was hard to get the ridges perfect which is what pissed me off.