So many possibilities to troubleshoot... Where do I begin?

LarryD:
Keep in mind in the future projects, a ULN2803 or 2804 has 8 divers rather that the 2004 with 7.

Got it.

LarryD:
When you add the decoupling capacitors install them as close as you can to VCC and GND on the I.C.s

should there be one per IC? I'm assuming .1uf?