|if its an acer it probably has a hidden drive, where you can restore windows from if indeed you didnt format the whole drive when you installed mac os, |
Acer offers a recovery partition (accessed by pressing Alt +F10 at Startup)
you may be able to open the win7 dvd from inside the mac os... and install from there.
however if your bios is set to dvd and it doesnt start you may need to press f11 or another key to choose boot device..you should see that in the bios messages at startup.
or maybe your dvd isnt working correctly, or your win 7 dvd is not good, you always make a usb win7 and try booting from that
i hate computers!
but cant help myself....