I have been running cgminer version 3.3.0 on a raspberry pi/D-link 7port HUB with a single usb erupter for days without any problems.

However, when I put more than one usb erupter into the hub I can barely get one or two shares before all the leds light up on all erupters and they stop hashing.

Wondering if anyone else has seen this problem and if it might be due to version 3.3.0, since there are posts in this thread of folks running multiple usb erupters with a raspberry pi.
Thanks.