2 monitor signals from 1 cable box

Can an Armstrong HD cable box output from both Comp and HDMI for use to both a Plasma for day use and Projector for nite use? Box comes tomorrow so curious if I should expect this to work or will it only allow 1 signal and shut all others off? Thanks
i know with my PS3 that both the hdmi and optical(audio) outputs are always active even though hdmi can carry the audio signal. i needed to use hdmi for picture and optical for sound cuz my previous pre/pro did not have hdmi. so, i would expect your unit to have all outputs active all the time as well. hope that helps. but you'll know soon enough...