I bought my Acer Extensa 4620Z new in April of 2008. It was made in December of 2007. It is now August 6, 2009, and the hard drive needs to be replaced. It is only 4 months past warranty. This laptop constantly overheated and shut down, causing errors. Also, the E drive, (DVD) would mysteriously disappear, and reappear...sometimes it would be gone so long, that I finally went out and bought a brand new Windows Vista HP to reinstall the operating system. The E drive STILL kept disappearing. This laptop is not worth the money, IMHO...go w/ a Dell, or HP or anything other than an Acer!