With phplm 3.1.1, a patch is needed to workaround one
of the countless
stupid msie bugs, that causes problems with vertical menus.
The problem is described in the "Help" Public Forum, in the
"Vertical Flyout Submenu Alignment Problem" thread:
This problem is workarounded applying a patch that I
released in the past for PHPLM 3.1.1 to fix a rendering
problem on Safari,
i.e. applying patch 878367:
"PHPLM 3.1.1: no more active items remain evidenced in
hence I'm not attaching a new patch: to solve this problem,
just download and apply the abovementioned patch.