is there any limit on how many menus can we have?

I have reached '1000', when I run the program it goes crazy, most of the menus disappear.
I have uninstalled and reinstalled VFP9, still didn't work.
I have to reinstall the whole windows XP to fix it.

*:IF _SCREEN.oApp.RunAdminTool('SEC_MENU','M','1000','1')

Jerry