S7-1200 RUN MODE problem !!

I want to test my new s7-1200, as I download the program to the PLC using the TIA Portal 10.5,
when I choose the online mode and pressed the RUN button, it didnt response and the yellow color refer again to STOP mode
Please I want a suggestion to test the device, what should I do ?? anyone can help me ???

Pl help me

If you right click on the cpu project, you get the options to compile all, and download all.


this works...
I did it now & it works ...
for any query visit the following link
http://www.automation.siemens.com/W...ow.aspx?PageIndex=1&PostID=269103&Language=en#

Thanx to Siemen Support