I'm reposting this here, it's originally from Adobe's forums...
"10.0.1 Update breaks printing on Epson roll paper
Prior to the 10.0.1 update I had no problems
printing landscape images on
8.3" roll paper on my Epson R800 printer. Now it insists on printing
all
images with the horizontal dimension parallel to the cut edge of the
paper,
(perpendicular to the roll length) resulting in landscape images with a
maximum width of 8.3". The printer settings dialog specifies Landscape
mode, but changing to portrait has no effect. In fact, it seems to be
stuck in Portrait mode and is ignoring the Landscape setting.
Prior to this update I could print, for example, an 8x12 landscape
image
with the 12" dimension running lengthwise on the paper roll.
"Just some guy," caretaker of the
Multiverse's largest EPSON printer User Community (highly recommended
by Vogon Poets and MegaDodo Publications), at: http://groups.yahoo.com/group/EPSON_Printers/
and the Multiverse's largest Canon printer User Community
at: http://groups.yahoo.com/group/Canon-printers
"For the rest of you out there, the secret is to bang the rocks
together guys"