Just a note to any new owners of a Acer M5620:
Start the system out of the box, utilizing the little green Acer widget on the desktop, burn the backup CDs/DVDs for your system(hint: One of those CDs are all of your drivers).
Next, this is my personal preference, go to the Acer Support site and place an order for a complete set of backup CDs and DVDs for your M5620. Here's the link:
http://tinyurl.com/lqbg4
Now, if you do one or both of the above mentioned suggestions, then I firmly believe you're good to go to wipe out the entire OEM installed system and perform a fresh, clean install of Vista.
(Mind you that making the OEM Backup CD/DVD purchase was my choice, but utilizing the green Acer widget that is on the system when you get it, to create the backup set yourself should work just fine. I just wanted to ensure for myself that I had an OEM Production Quality backup set in my possession.)
Either way you should be good to go.
Congrats on your new M5620, enjoy it and have fun.
Happy Holidays Everyone!!!