I have read the options below but if I just type "Wait=No" and "Timeout=3" in my com.apple.Boot.plist file in my extra folder nothing happens.
The chameleon Apple waits for a key press before booting. How can I have my Computer to boot right into OSX the only OS I have installed.



Options useful in the com.apple.Boot.plist file:
Wait=Yes|No Prompt for a key press before starting the kernel.
"Quiet Boot"=Yes|No Use quiet boot mode (no messages or prompt).
Timeout=8 Number of seconds to pause at the boot: prompt.
"Instant Menu"=Yes Force displaying the partition selection menu.

"Default Partition" Sets the default boot partition,
=hd(x,y) where 'x' is the disk number, 'y' the partition number.

GUI=No Disable the GUI (enabled by default).
"Boot Banner"=Yes|No Show boot banner in GUI mode (enabled by default).
"Legacy Logo"=Yes|No Use the legacy grey apple logo (disabled by default).

GraphicsEnabler=Yes|No Automatic device-properties generation for graphics cards.
EthernetBuiltIn=Yes|No Automatic "built-in"=yes device-properties generation
for ethernet interfaces.

USBBusFix=Yes Enable the EHCI and UHCI fixes (disabled by default).
EHCIacquire=Yes Enable the EHCI fix (disabled by default).
UHCIreset=Yes Enable the UHCI fix (disabled by default).

Wake=No Disable wake up after hibernation (enbaled by default).
ForceWake=Yes Force using the sleepimage (disabled by default).
WakeImage=<file> Use an alternate sleepimage file
(default path is /private/var/vm/sleepimage).

DropSSDT=Yes Skip the SSDT tables while relocating the ACPI tables.
DSDT=<file> Use an alternate DSDT.aml file
(default paths are /DSDT.aml or /Extra/DSDT.aml).

SMBIOSdefaults=No Don't use the Default values for SMBIOS overriding
if /Extra/smbios.plist doesn't exist, factory
values are kept.

"Scan Single Drive" Scan the drive only where the booter got loaded from.
=Yes|No Fix rescan issues when using a DVD reader in AHCI mode.
Rescan=Yes Enable CD-ROM rescan mode.
"Rescan Prompt"=Yes Prompts for enable CD-ROM rescan mode.

Try this:

"Quiet Boot"=Yes Use quiet boot mode (no messages or prompt).

"Default Partition" Sets the default boot partition,
=hd(x,y) where 'x' is the disk number, 'y' the partition number.

Thanks.