dvr NOT recording

I had the new dvr (I think contour) installed last friday the 5th & have problems ever since.  It will NOT record programs I want in the future............even in two hrs.  It will record a program if I'm already watching it tho.  I've had cox send signals to it I think 4 times now.  I do have patience but it's about to run out.  I WANT MY OLD CABLE BOXES BACK OR ELSE SEND A TECH GUY HERE!!!!!!!