One layout refuses to allow input; the rest are fine.

[Tom2001]

Hi from a relative newbie,

I have a FMP 13 file that works fine on some computers (both Windows and Mac) but on one Mac computer it works only partially. Several of the layouts work fine, but one layout is "frozen" and does not permit entry in any of the fields. Is there something in the Mac OS that could "lock out" a particular layout, but leave all others normally functional? Should I re-install FMP 13? (I'm not sure how to do that on a Mac. I'm mostly a Windows worker.) Any help or insight would be welcome.

Thanks,

Tom