David82:
..."the same diagram, but without all but one cap, without 5v line from arduino and with a 220ohm resistor on the +- rail, works perfectly. "
The mystery remains...First time i hear someone saying he is lighting 88 leds and 11 SR without the 5 V power ... No wonder arduino is such a success!!!
You will end up having problems as soon as you connect a external power source, i guess... I hope not, but that is almost assured