HELP:( No NDS emulator works for me:(, I cant use the "start" button.

As the title says,..
I cant use the start button in any of the following NDS emulators wacko.gif
- NO$GBA
- DeSmuME
- iDeaS
- NeonDS

No matter what i do.. I tryed to change the button that is used (RETURN), but nothing helps.

Any help?