Attiny85 Invalid device signature...

Erni:
As far as I can see you are you connecting pin 9 on Arduino to PB3 on attiny85, why is that.

Through google, I had come to the conclusion that I have a fuse problem so I was trying to use the ISP that provides a clock on pin9 of the arduino to fix it. I have since removed the connection in all my attempts with your suggestions.

Erni:
Which version of the Arduino IDE are you using

1.0.3

Erni:
using this ISP
http://arduino.cc/forum/index.php/topic,108797.msg824488.html#msg824488
Reply #39

I had tried that ISP previously as well with no luck.

Erni:
You could try this core
http://code.google.com/p/arduino-tiny/
Programming ATtiny85 with ArduinoISP

I followed this guide just not and still no luck. I even tried to burn the 8Mhz bootloader and I get the exact same error.

Shpaget:
In my recent endeavours with ATtiny45 I experienced that error when the capacitor was not connected.
I also noticed that it did not always achieve proper contact when put in the connectors on the Uno. so I moved it to the breadboard.

When the capacitor was not plugged in properly or completely absent I would get the getsync error instead.