warning (yellow) for the integration server

hi i have done a file to file scenario but the respected file is not being picked

from the source directory i feel that the problem is with the adapter engine

more over wen i m chking in the RWB i m getting every thing in green except for

the integration engine and proxy

i feel proxy has no relation with this scenario

and for the integraton engine

it shows orange (and asks in the down is web security service available?)