lacuna /wosely meter issue

[gary jack]

hi all. I have a lacuna/ wosely meter and im having a problem when lining up the satellite as it doesn't recoginise vertical high, getting a reading on v/low , h/high and h/low isn't a problem. ive tested with a new meter and I get a reading on all four so i'm guessing its a software issue. is there a update or something that I can do to rectify this problem or do I need to send it off to a specialist company to be repaired?
any help is appreciated . thanks

 

[gibertini]

you will need to update the mem file/dataset.. which version is it? mk3 or mk4