Dual monitor (LCD) support

[Steve]

 I've installed 5.04 on a desktop. All went well except for enabling dual monitor support.
 I've a Radeon 9700 Pro with 2 LCD's hanging of it. At the moment I have 2  cloned
 desktops, whereas I'd like to have 2 seperate workspaces ala Win XP. Even just having one
 large desktop would be OK. For me, a cloned desktop is useless. I've tried many different
 xorg.conf combo's as per Ubuntu forum suggestions & google searches but to no avail. Does
 anyone have any ideas or even better a working config for 2 x LCD & a 9XXXX card?
 Thanks