I have the corrected windows wallet 2.0.4.0 and did a re-sync last nite from dmdchain20140923-clean.
This problem still occuring regularly ... hours between block (high diff

) Once it syncs again it is ok for several hours and then gets stuck again. If I restart wallet with checklevel=6 it eventually continues on ...
then anything is OK
sync issues are related to no new block for some time
that will be fixed with POW reactivation tomorrow