Lite-on 5007 and dct5100 cable box



My Liteon 5007 worked ok with a Motorola dct2240 cable box.
Yesterday the Cable company swapped the 2240 for a Motorola
dct5100 so I can use HDTV. I haven't been able to get the
IR Blaster to work with this new box. Has anyone been able to do so?
Box is both HD and RF.
Thanx, don