Two weeks ago, I bought an Acer Aspire Laptop 5745G that came with Windows 7 pre-installed. For our project reasons, I had to install Windows XP 32 bit on it. Once installed, I realized that I can not get the Nvidia graphics card to work. So I called the acer support. The transcripts of the acer support staff is located here:

1. holla.freeshell.org / acer-chat.html
2. holla.freeshell.org / acer-chat-16-jul-html.html
(remove spaces from the above URL)

The summary of the story is that they will not restore your OS if you accidentally deleted or formatted your machine.