Has any one had a problem with solidworks crashing  when try to re attach dangling dimensions 

in a drawing  i think they are driven dimensions cant seem to re attach them in the drawing  is the only way to remove and add new dimensions

i think i am revising a detail in the module and then ending up with some  dangling dimensions

they may be  driven dimensions not sure but i have no way to edit dimensions when i click on them

ie no little red blocks if i try to move the dimension it crashes the program

Thanks Andrew