Breadboard Arduino - Sketches load in 0.22, but not in 1.0

I have a breadboarded Arduino - On my home computer with a RadioShack USB to serial I can load sketches with Arduino-0.22, but Arduino-1.0 i get teh following -

avrdude: Version 5.11, compiled on Sep 2 2011 at 19:38:36
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch

System wide configuration file is "E:\dld\Arduino\arduino-1.0\hardware/tools/avr/etc/avrdude.conf"

Using Port : \.\COM6
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: Send: 0 [30] [20]
avrdude: Recv: . [ff]
avrdude: stk500_getsync(): not in sync: resp=0xff

avrdude done. Thank you.

At work I have a computer with a hardware serial port and it loads from either 0.22 or 1.0.

Any Ideas?

Baud rate mismatch most likely.
Re-bootload your breadboard with Optiloader, and select Uno as board type.

In all instances the baud rate is 115200. Using the standard Arduino Uno configuration. And the chip is a 328P with the bootloader installed form SparkFun. Works no problem in my Arduino Board.