I keep getting error messages
Generated an incorrect block. Waiting for the next one
I tried deleting blocks.nxt but it did not help because
[2014-02-15 15:52:02.715] blocks.nxt not found, starting from scratch
[2014-02-15 15:52:02.715] Error initializing Nxt servlet
java.lang.IllegalArgumentException: attempted to create a block with 115357 tran
sactions
and then it ended with a bunch of errors

So I deleted also transactions.nxt and it seems to be doing something now...