i'm busy trying out all the front ends i can lay my hands on atm. and now its mamewah to be put in the line of fire lol

i just recently managed to get mamewah working with snes and i now have it seeing my nes and genesis roms, (arrg manual setup! why oh why has mamewahsetup not been updated

) but i've hit a problem. atm whenever i launch a nes game it starts loading (screen goes black) and then pfft nothing....it just stays black. task manager can see the emu running but it seems to not have loaded the rom. and with genesis the same thing happens, only the task manager couldnt even see the emu and i had to shutdown manually and reboot to get back into windows...anyway here are the two ini files:
### nintendo.ini (mamewah v1.60) ###
emulator_title Nintendo
### List Generation Settings ###
rom_path E:\NES
rom_extension zip
dat_file
nms_file
catver_ini_file
list_generation_method rom_folder
### Execution Settings ###
emulator_executable c:\emulators\nes\fceu.exe
commandline_format {8.3[rompath]\[name].[romext]}{dosbox}{nosafelaunch}
alt_commandline_format_1 [name]
alt_commandline_format_2 [name]
game_specific_config_path
### Artwork Locations ###
artwork_1_image_path E:\snaps\nes\screens
artwork_2_image_path E:\snaps\nes\titles
artwork_3_image_path
artwork_4_image_path
artwork_5_image_path
artwork_6_image_path
artwork_7_image_path
artwork_8_image_path
artwork_9_image_path
artwork_10_image_path
movie_preview_path
movie_artwork_no 1
### Screen-Saver Settings ###
enable_music_in_screensaver 0
saver_type launch_scr
movie_path
movie_fullscreen 1
quit_delay 30
wrapper_executable
wrapper_commandline_format [name]
scr_file
### External Application Settings ###
ipc_file_or_path
app_1_executable
app_1_commandline_format
app_2_executable
app_2_commandline_format
app_3_executable
app_3_commandline_format
auto_launch_apps
### Additional Settings ###
music_path
lcd_display_file_path
lcd_fe_text
### Settings used by MAMEWAH ###
current_list 0
AND THE GENESIS ONE### segagenesis.ini (mamewah v1.60) ###
emulator_title Sega Genesis
### List Generation Settings ###
rom_path E:\SegaGenesis
rom_extension bin
dat_file
nms_file
catver_ini_file
list_generation_method rom_folder
### Execution Settings ###
emulator_executable c:\emulators\SEGA\Gens+.exe
commandline_format "[rompath]\[name].[romext]" -gen -fullscreen{nodosbox}{nosafelaunch}
alt_commandline_format_1 [name]
alt_commandline_format_2 [name]
game_specific_config_path
### Artwork Locations ###
artwork_1_image_path E:\snaps\Mega drive\screens
artwork_2_image_path
artwork_3_image_path
artwork_4_image_path
artwork_5_image_path
artwork_6_image_path
artwork_7_image_path
artwork_8_image_path
artwork_9_image_path
artwork_10_image_path
movie_preview_path
movie_artwork_no 1
### Screen-Saver Settings ###
enable_music_in_screensaver 0
saver_type launch_scr
movie_path
movie_fullscreen 1
quit_delay 30
wrapper_executable
wrapper_commandline_format [name]
scr_file
### External Application Settings ###
ipc_file_or_path
app_1_executable
app_1_commandline_format
app_2_executable
app_2_commandline_format
app_3_executable
app_3_commandline_format
auto_launch_apps
### Additional Settings ###
music_path
lcd_display_file_path
lcd_fe_text
### Settings used by MAMEWAH ###
current_list 0
So any ideas what could causing this?