Ethereal and 9.3

Has anyone seen difference between the 9.2 and 9.3 functionality of Ethereal? I did a clean install of 9.3 on the same box I had 9.2 working on. All is working well, except Ethereal no longer gets into promiscuous mode, anymore. Should I investigate Ethereal or dig into the drivers for the network card? These would seem to be the areas that would have been affected by the new version. Thoughts? Resources to research? Thanks, Van