When I got the computer, I plugged it in and set up the peripherals. I turned it on and the first thing I noticed was no screen on monitor. The second thing I noticed was the numbers 1 and 3 in gold letters on the front. Having never owned a dell before I was clueless as to what the numbers meant. I immediately (on a sat nite) notified the seller that i thought the VGA port was bad. I had a response first thing upon business open on monday.Turns out the RAM got a little jostled in shipping and the back board came a little loose. A quick reset and the problem was quickly rectified.I received a different computer than what I ordered.  However,  the difference between the two models (790 vs 990) are negligible and mostly cosmetic. So that was a no harm no foul.I'm the type of buyer that I can overlook the minor problems as long as I get good customer service and not made to wait. The sellers very prompt responses made the fix much easier to deal with.As of now I have only set up windows and wifi.  I will post updates if something goes wrong.Much thanks to the service of tekrefurbs I didn't have to return the computer for a very simple fix.