Front Panel Veriton M460

I see the 3 clips on the left side but the panel is still anchored. What
else do I need do to remove the panel? [I want to add a fan to cool the
SATA HD.]
Thanks.
--
Remove -NOSPAM- to contact me.

In case anyone else needs a work around:
The Veriton chassis is designed with vent holes on the side panel to
directly exhaust the CPU fan. Nice. But the vent holes render an extra
chassis fan mounted in space provided at the rear ineffective to draw air
over the front mounted hard drive.
Since I could not see how to remove the front panel, I removed the hard
drive and just slipped a 3 inch fan in vertically before pushing the hard
drive back in. The fan is not secured with screws [inaccessible] but the
hard drive seems to hold everything tight. No noise. Better air flow.
I would still like to know how to remove the front panel for future use.