Ours is working perfectly as well!
Invoice says Denon replaced the laser pickup and updated firmware; ALL SACDs we have play perfectly, even in Multi-Channel, which it hadn't for our Mercury Living Presence discs (Starker/Bach Cello Suites & Stravinsky Firebird). Spent many enjoyable hours testing and listening to excerpts from the 20 Living Stereos, 2 Harmonia Mundis, 2 Cheskys, and the 3 Death Discs (MLPs). All after 24 hours warm-up; warm-up exacerbated the problem previously. Loading time's improved too.
Kudos plus to our local dealer, who even went out and bought one of the MLP MCH discs (Chabrier & Roussel) and sent it to Denon for testing (AND gave us this disc when we got the unit back). A definite vote for our friends in bricks-and-mortar.
Maybe it's just the joy of resolution ;-) but we both swear she sounds better on SACD now (we had the dealer's demo unit for the 3 months this all took).
2 happy campers, Dr Dave and Kathy