[REBOL] VIEW Backdop

[trobrock]

Someone HELP!!!

I am using this code:

REBOL [
   title: "test"
]

view layout [
    size 500x500
    backdrop %backdrop.jpg
]

and when i try to run the file it says:

** Script Error: Cannot use path on word! value.
** Where: size: image/size

!!!PLEASE HELP!!!