My 800v4 is acting up. Has anyone run into similar situations or have possible suggestion/solution?

So while trying to load a CD the HD621 synchs as it should while CD spins up and down trying to read hunts for 20 seconds blinking "loading" on the face of the 800, then times out (think the 861 v4 gives up and times out because that sounds like where the click comes from the 861 or it could be the 800 reporting no disc? that trigger the click form the 861)and the 800 reports no disc.

Config is 800 HDMI/dig to HD621 to 861 v4
Nothing has changed except I took the Oppo out of the loop a few weeks back. The last few weeks the 800 was doing similar things as reported above but after another attempt or two she would figure it out, synch up and play. Not today.

Txs in advance.
J

861v4 & v6, 800v4, 808.3, pr of 8k's, 5.5k 24/96(x3), HD621, Velo15, Modded OPPO BD83, Pioneer DVL-91combi, Technics SL-1200MK2, Musical Fidelity XLP, Kuro151FD, MIT & Kimber, 519, & Harmony 1K, member since July 2000