[CentOS] CentOS and Bash History

Hi,

I was wondering if bash or inputrc has changed form CentOS v4 to CentOS v5? Reason I ask is at the bash cli I can type, for example 'su' and then with the up and down arrows I can scroll through my history and will only see the commands that begin with 'su'. In CentOS 5 this isn't the case.

I have added some code to my inputrc file to make this work in CentOS 4 as follows:

# Search History for previous used commands "\M-[A":history-search-backward "\M-[B":history-search-forward "\M-[C":forward-char "\M-[D":backward-char

And this works well in CentOS 4 but I cannot get it to work in CentOS 5. Anyone know why or what I have to change?