windows 7 - Cannot extend desktop to third monitor

My Notebook status:

Model: HP Pavilion 7 6b21em
CPU: Intel i7 2.3 Ghz QuadCore
RAM: 8GB DDR5 (2x4 GB) GPU: 1x Intel Integrated, 1x ATI AMD Radeon 6670M HD 2GB
OS: Windows 7 64bit Ultimate

I have switch-able graphics card however I changed the BIOS setup to Fixed so that PC and
all applications always use the better ATI AMD Radeon graphic card.

As for my outputs I have:
1x HDMI
1x VGA

I don't have a Display Port (I'm not sure if this is a requirement for Eyefinity).
I read on AMD site that graphic card can in fact output to both VGA and HDMI at the same time.

I have two external screens. I have a 24" Screen connected to my VGA I connected the screen and then selected Extend Desktop to this monitor under display settings.

I connected the 27" screen to the HDMI port the screen is detected however if I select Extend Desktop to this screen then it Disconnects the one on VGA and it allows me to only Extend Desktop to one.

This website has detailed information about my graphic card both sites say it supports Eyefinity yet I cannot find Eyefinity option under Catalyst Control Center.

I read few articles that say this is Windows fault but cant find why. Is there any software for monitor management that could solve this issue ?