Alrighty... so i ran into the preview bug with mamewah already, and was able to "search the forums" my way out of that mess. Now i'm stuck with this odd cutting off of the picture when the preview movies play within mamewah. anybody else have this issue?
here's a screenshot of my issue + my mame.ini & mamewah.ini text:

----------------------------
mame.ini### mame.ini (mamewah v1.62) ###
emulator_title M.A.M.E.
### List Generation Settings ###
rom_path c:\mame\roms
rom_extension zip
dat_file
nms_file
catver_ini_file c:\mame\catver.ini
list_generation_method rom_folder_vs_listxml
### Execution Settings ###
pre_emulator_app_commandlines
emulator_commandline c:\mame\mame.exe [name]{nodosbox}
post_emulator_app_commandlines
general_app_commandlines
### Artwork Settings ###
artwork_image_paths c:\mame\previews;c:\mame\titles
movie_preview_path c:\mame\previews
movie_artwork_no 1
enable_fuzzy_search 0
history_dat_file
history_dat_artwork_no 2
### Screen-Saver Settings ###
enable_music_in_screensaver 1
select_random_game 0
saver_type gamelist_slideshow
movie_path
movie_fullscreen 1
quit_delay 0
saver_commandline
### Additional Settings ###
music_path
lcd_display_file_path
description_display [description]{scroll}
### Settings used by MAMEWAH ###
current_list 0
------------------------
mamewah.ini### mamewah.ini (mamewah v1.62) ###
### (Global) Screen-Saver Settings ###
delay 300
slide_duration 3
### Audio Settings ###
enable_sounds 1
sound_volume 100
music_path
enable_music 1
music_volume 100
### Movie Settings ###
intro_movie_file
exit_movie_file
keep_movie_preview_aspect game_aspect
delay_before_movie_preview 1
music_movie_mix mute_movies
movie_volume 75
### Misc Settings ###
emulator_root_path
auto_setup_emulators 0
theme
wrap_list 0
remember_current_game 1
keep_image_aspect 1
refresh_images 0
delay_before_history_dat 2
safe_mode 1
show_cursor 0
keyboard_led_states -,-,-
lcd_com_port 1
lcd_settings
exit_action choice
maxlogsize 100000
### External Application Settings ###
startup_app_commandlines
exit_app_commandlines
exit_and_run_app_commandlines
### Settings used by MAMEWAH ###
current_group
current_emulator mame
locked 0
--------------------------
the way i have the layout setup, the movie preview should use the ENTIRE black area to the right, but if you look closely, the whole lower portion of the movie isn't viewable. even on the verticle previews the movie plays dead in the center of the designated area, and the lower portion is ALWAYS cuttoff.
i did notice that when i play the movies through windows media player, outside of mamewah of course, the same thing happens - only the upper portion of the movie is visable. HOWEVER, when i use "divx player", the movie plays perfect.
any ideas as to why this is actin' foolish???
all help is greatly appreciated!
jace