I'm sorry to hear that you're having this issue.
It sounds like the router isn't allowing the pictures to come through, and I'm not sure what setting would be causing that. If it was one player, I might suggest re-activating your account (deactivation can be done at the Netflix site for the individual players), but since it's both, it may be a network issue.
Are the movies able to play?
The wrong descriptions sounds like a glitch. For that, I would recommend trying to re-activate each Blu-Ray player. If that doesn't work, you may want to dial 866-716-0414 and see if Netflix technical support may be able to help out.
Anyone know how to fix the cover art issue? The cover art only shows up occasionally on the Samsung player. This happens on both my BDP1600 and C5500. The 5500 just installed a new OS last night and it does the same thing. in addition, the cover art that does show up, has another movies description.