I tried flashing to 1024, nothing. I just did the save and apply it didn't work, but the line for voltage on the S3 is blank. Should it be? hmm. Going to reboot once more...
when the top line shows zero's in the hash rate, try the following:-
log in and go to:-
status tab
miner configuration tab
advanced settings tab (grayed out till you select it)....... then re-select the frequency, then save and apply.
(there was a reference to this back in August when the S1/S3 upgrades were first offered)