i have just installed SM3.4 and started playing, i clicked on a 'space' which contained pictures. an error message appears which says

the following exception occured in the DataGridView

system.argumentexception: DataGridViewComoBoxCell value is not valid

to replace this default dialougue please handle the dataError event

i cant get rid of this or do anything else. ive tried reinstailling this version and previous versions, but no joy. im on win 7 (64bit)

thanks

terry