I just tried after patching my game to 1.4.0.6 and still no DUI menu. All I get is the little clicking sound, but no pop-up.
I'm using 1.4.xx and 1.5.xx, two version fully support DUI with/without FOSE.
so, you need check following things:
1. download DarNified UI F3 "FOMM" version and uncompress to some place (X:\.....\.....\dui_f3a10.fomod)
2. download FOMM and install/place to right sud-dir (Z:\......\Fallout 3\)
3. if you wanna see fully effect, you need download FOSE 1.1beta6 (fose_v1_1_beta6.7z), and uncompress to (Z:\......\Fallout 3\)
4. running FOMM, Package Manager -> Add new -> (X:\.....\.....\dui_f3a10.fomod) -> Activate -> FOMM will ask some question, press "Yes" for all.
5. back to FOMM main screen, left panel will show loading order, make sure "DarNifedUIF3.esp" and "DUIF3Extras.esp" in it.
6. deal with Fallout 3 Archive Invalidation problem, simple using this tool http://www.fallout3nexus.com/downloads/file.php?id=944
7. running ArchiveInvalidation Invalidated!.exe , press "Activate", it will allow Fallout 3 game load all of your "modified" texture,meshes......etc
8. running FOSE instead Fallout 3.exe to load game if you wanna see fully effect.
9. load any of savegame, and press "ESC", menu "DUI F3" will appear like screenshot, enjoy
http://farm4.static.flickr.com/3620/3489652391_806541cf4c_o.jpg
http://farm4.static.flickr.com/3579/3489623367_5f5d4cea33_b.jpg
http://farm4.static.flickr.com/3414/3490451818_c9243e1756_b.jpg