Prog Finder problem

#1
Hi everyone!!! I have a strange problem.. I want to point better my dtt antenna, so I installed prog finder. But it display me only quality signal ( it find all channels on multiplexer) but the signal level is not displayed (is ever zero) but it result locked with green carachters. So I can't know the signal level and point better my antenna. My o.s. is windows 10 and the dtt dongle work properly with programs, like progdvb and other. Thanks