We have two identical installations of CF9 (C:/inetpub/wwwroot/cfide/...) using the FCKeditor. One is the staging and the other the production server. On the staging server the editor shows the rich text but on the production server only the standard textarea field without the rich text controls. The CF files are identical. Also a third server works just fine. All 3 servers are CF 9.0.1 64 bit win 2008.
In IIS or Apache ( your webserver ) do you have the virtual directory to CFIDE ( alias in Apache ) pointing to the actual CFIDE directory on disk?