Hey ..
i have a macbook pro and my friend just downgrade my Lion os to 10.6.8 cos i ve problems with autocad 2011 always crash so after downgrading i ve anther problem in updating my apps using Software Update after downloading the update it cant be installed saying there is a missing digital signature nd it gives me that in all apps i try to update ..
i have a macbook pro and my friend just downgrade my Lion os to 10.6.8 cos i ve problems with autocad 2011 always crash so after downgrading i ve anther problem in updating my apps using Software Update after downloading the update it cant be installed saying there is a missing digital signature nd it gives me that in all apps i try to update ..