Thanks PeterG. I tried to download the mpg zoyd posted but it seems that his link is dead. Do you think you could upload your copy somewhere so its available to us burned-in unfortunates?
I'm still going near 100 hours with the full white slide and still the logo is visible. It nearly seems permanent at this point but I'm willing to try everything.
Something I noticed is that the color temperature presets affect how visible this burn in appears. My set has Cool2-Cool1-Norm-Warm1-Warm2.
I don't know if its an optical illusion or not, but Cool2 seems to display the white slide the brightest and also hides the burn in the most, while Warm2 shows the burn in the most.
Unfortunately, if I exit the Vivid 100%-everything Cool2 torch mode, and switch to a normally calibrated THX watching mode, the burn in becomes much more visible again.
I'm still wondering about creating an inverse logo to fill in the burn in, if it can be done accurately and not make the situation worse.
The only thing that gives me hope for all this full white screen blasting is what you posted earlier in the thread, which seems to be some of the scant factual information regarding burn in.
http://www.avsforum.com/t/949107/master-burn-in-ir-break-in-thread-part-ii-all-posts-here-only/3840#post_225254843 - MgO Sputtering - High energy discharge in Plasma displays causes Magnesium Oxide to sputter and deposit onto the phosphor and adjacent pixels. The result is a long lasting ghost image that can take many days to remove. It can be seen as a slightly darker image on a full white screen. Ironically, a full white screen for many hours is the best course of action to resolve this issue as it normalized the deposition of MgO to all pixels (evens it out)