http://bugs.winehq.org/show_bug.cgi?id=19608
--- Comment #4 from Rod Schaffter rodschaffter@gmail.com 2009-08-25 11:41:01 --- The bug still exists in Wine 1.1.28.
I created a hosts file containing the line '127.0.0.1 localhost' and tried it in ~home/.wine/drive_c/windows/system32/drivers/etc and in ~home/.wine/drive_c/windows/ but there was no change.
As far as Poser 8 goes, the Firefox workaround will allow the addition of additional Runtime folders if the Windows version of Firefox running in the same .wine directory as Poser is used. The file dialog window may be behind the Firefox window, so don't do it with Firefox maximized. I symlink the folder containing the content into ~home/.wine/drive_c/