yo, try right clicking the patch file - open with - then select "maxMSP5.app (default)" n it will just open it in max without opening the maxi patch (which is probably what is currently selected). i had this problem, this should rectify for all ur patch files i think.
no worries! i saw a question that i could answer, so i did! from what i can tell the forum is a little quite! if i hadn't answered it who knows how long u would be waiting for a reply! glad to help!