I made the mistake of upgrading to 3.2.2.56 and have a number of issues (that may or may not be related), however it was recommended that I try downgrading the firmware to 2.x (I was going to use 2.6.0.2019). I put the firmware file in my tftpboot directory and I've also tried installing via the web interface for my 57i's and it won't install the older firmware. Is there some way to force this?