If you bought it using some sort of credit card you might lucky on returning it. Also the laptop should be under company warranty, so you can call acer for support.
Now moving to what you can do, check the HD on the laptop. Take it apart and see if its not fried or some thing. If you got extra HD try installing that and see if the system sees it. Make sure if you do take HD out, power is off and battery is not installed.
Personally i would call acer first and see what kind of support they can offer. Usually new laptops are under 1 year MFG warranty.
Excuse me for a second while I freak out!!!
1. check the HD---and where would that be located at.
2. take it apart--have no idea how to "take it apart"
3. extra Hd--what the heck
4. going to the Acer website now.