SAPgui for Windows under Parallels: no file loading for yuo!!1!

I've had the most disconcerting experience trying to load some data into SAP. When I use cl_gui_frontend_services=>file_open_dialog, I get a short dump with runtim error "RAISE_EXCEPTION". Here are some choice details from the short dump:

ShrtText
    Exception condition "CNTL_ERROR" raised.

Error analysis
    A RAISE statement in the program "CL_GUI_FRONTEND_SERVICES======CP" raised the
     exception
    condition "CNTL_ERROR".
    Since the exception was not intercepted by a superior program
    in the hierarchy, processing was terminated.

    Short description of exception condition:


    For detailed documentation of the exception condition, use
    Transaction SE37 (Function Library). You can take the called
    function module from the display of active calls.
    -

Information on where terminated
    The termination occurred in the ABAP program "CL_GUI_FRONTEND_SERVICES======CP"
     in "FILE_EXIST".
    The main program was "ZDC_METAL_TEMPLATE_RECAP_LOAD ".

    The termination occurred in line 55 of the source code of the (Include)
     program "CL_GUI_FRONTEND_SERVICES======CM00Z"
    of the source code of program "CL_GUI_FRONTEND_SERVICES======CM00Z" (when
     calling the editor 550).

The file loads just fine in SAPgui for Java.

Any thoughts or insights? Is my installation hosed, maybe?