I am neither a pro, nor a novice. I’ve been assembling my own computers since the mid-1990s; I am not fearful of refurbished products. I am impressed with the dell mobile workstation; I am unimpressed with the lack of response by the seller. The computer arrived in great shape physically, functionally, not so great. It has no audio, and despite repeated installation of the appropriate audio package, available from the Dell website, continues to have no audio. In addition the video driver is the OS generic driver. All attempts to install the proper software, again from Dell, end in an error message stating the package is incompatible with this system. Even if this problem originates with the Dell website it strains credulity that the seller wouldn’t be aware of that before shipping it to me. With adequate support these problems are not a deal-breaker; zero support, failure to respond, is. This is my third, and last, attempt to solicit a response. I have been issued an RMA, and will use it by the end of the week if the status quo prevails.