See attached!
column `id` has bee a PK and "PK", "NOT NULL" and "AUTO" have all been checked.
Now I don't want it to be PK any more and try to uncheck all three boxes.
It is not possible to uncheck the "NOT NULL" box 'in the first run'. i have to uncheck "PK" and "AUTO" save changes, then open ALTER TABLE once more. Now I can uncheck "NOT NULL" and save.
Tested with SQLyog 5.0 an 5.01 (non-public) Beta as well
Full Version: Small Gui Bug In Alter Table
Confirmed and fixed in v5.01 development tree.
SQLyog v5.01 BETA has been released. More details at: http://www.webyog.com/forums/index.php?act...&st=0#entry8102
Confirmed fixed! 
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