Hi Jose,
I'm using the compiled version of flex, so yes my options are limited, I've logged it with ESRI and he's sent it of to Redlands so we'll see what they come back with.
In the mean time I've worked around it, by created another date field as a string, this means in flex the user has to type the date in rather than using the calender, but it means the correct date is stored and will print out correctly in my forms.
Then every so often I can update the actual date field using field calculator and it registers it as a proper date so I can use this field for querying, sorting etc.
It's a pain I have to do it this way but until ESRI decide to fix the bug, it's my only option.
Thanks
Rachel