Currently Being ModeratedFeb 1, 2013 9:20 AM (in response to Metrobot)
Currently Being ModeratedFeb 1, 2013 9:26 AM (in response to Metrobot)
That's edging towards too full, though it should still work okay. How large are these disk image files?
Do you have any extraneous files hanging out in your Downloads folder? If so, try deleting them and see if that makes a difference. (Make sure to empty the trash after putting them into it.)
Currently Being ModeratedFeb 2, 2013 1:48 AM (in response to Metrobot)
actually it didn't work. still can't open dmg files.
it has somthing to do with my upgrade ro mountain lion.
Currently Being ModeratedFeb 2, 2013 4:50 AM (in response to Metrobot)
How large are the .dmg files? And how much free space do you have now? And were you able to open .dmg files when you marked the topic as solved?
Note that this error is absolutely NOT related to the new security features of Mountain Lion. If the app were from an unidentified developer, you would get a message explaining that (not talking about disk space) when you tried to open the app, not when trying to open the .dmg file.