[Bug 34000] New: Office 2007: installation usually aborts with "Installation language not supported."

http://bugs.winehq.org/show_bug.cgi?id=34000

Bug #: 34000
           Summary: Office 2007: installation usually aborts with
                    "Installation language not supported."
           Product: Wine
           Version: 1.6-rc4
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

I cleared out the .wine folder, mounted an ISO of "Office Home and Student
2007" then attempted installation:

WINEARCH=win32 win32 /mnt/office/setup.exe

Following the installation instructions on the website I've run winecfg and
ensured that "Windows XP" mode is set.  Most of the time the only dialog that
appears is a small message box saying, "Installation language not supported."

I'm running Ubuntu 12.04 with Wine 1.6-rc4.

I've attached a trace from a failing run prefixed with
WINEDEBUG=+msgbox,+relay,+seh,+tid

Very, very occasionally (in about 10-15 runs I had two successes) it will
manage to proceed, allowing me to enter my license key and then select
components.  It will then crash.

I'm attaching two traces (bzipped) - one from a failing run and a truncated one
from a successful run.

I can provide a full trace from the semi-successful run, but it is fairly large
(3.1MB bzipped, 250MB raw).