I purchased a Dell computer in November 2011 from QVC. It was $779.96 (it wasn't cheap).
I bought it for my daughter for school. The computer's motherboard had to be replaced (witch Dell did free of charge) however they sent it back with a damaged wireless card so now it won't connect to the internet. She has spent hours & days on the Dell tech support line (they are very rude) and still no resolution. I called QVC and of course they got my money and said take it up with Dell.
Dell said "it's a machine, we can't guarantee any machine". They keep telling her to wipe out her entire hard drive instead of allowing her to send it back for repairs free of charge again. It's not even a year old....
from what we gather this computer is known for these issues. Do Not buy a Dell, they do not back up their merchandise & please don't ever buy anything that expensive from QVC or your throwing your money away!