[Gimp-user] Page Setup

[NicPic <forums gimpusers com>]

I want to print an image 277mm long on an A4 sheet. At that length it has to be
in Landscape orientation, otherwise it won't accept me subsequently specifying a
printed image length of 277mm under File > Print. Many times I've sorted this by
File > Page Setup > check "Landscape", (prior to File > Print > choosing
settings). Now all of a sudden, if I check "Landscape" in Page Setup and hit OK,
the dialog box disappears, but if I then go back into it it's put the check
button back to "Portrait" (and it  does this for other settings experimentally
changed inside the same box). Is there some obscure setting hiding elsewhere in
GIMP that explains this? Can anyone help, it's totally baffling. BTW yes I've
uninstalled GIMP 2.8 and reinstalled it, clearled Browsing History / Cookies,
Restarted PC etc. Windows 7 Ultimate if that's relevant.

-- 
NicPic (via www.gimpusers.com/forums)