Hi, Just wondering if anyone has come across this. When I try to change channels, some channels are not getting a lock eg: 1035, 1036, 1038, 1904, 1908, 1909 These work: 1910 1920 1921 1922 1923 1924 1925 1926 1927 1928 1931 1940 I guess I figured that either all would work or none. Any ideas? Thanks in advance. Regards, Julius.