You are welcome. I think I also see the increased ghosting in the lower right corner, even with the glasses turned 45 degrees.
I did some more research and found this document, that has a very good explanation of 3D glasses technology: http://www.drt3d.com/W05-Polarization.pdf
On page 13 it states: "From our model for circular polarization, it appears that the linear polarization is the first step for creating the circularly polarized light and it should not have any effect. In practice, it is found that ghosting is slightly increased if not using the "Optimum" glasses. Most people will not notice it and a lot of people are using the "free" Real-D glasses with Zalman and Acer screens and are happy!"
In my case the supplied LG glasses do not appear to be optimal (btw, does the description I gave earlier for them - a white frame with "LG cinema 3d" printed - matches to what other people received with their TV?). I have experimented with RealD glasses as well, and they have exact same effect -
when turned 45 degrees they work much better)
Apart from the ghosting issue I am unhappy to report that I see the vertical lines on areas with motion, and they ruin 3D effect. Also I see the abrupt brightness changes that lag the scene changes (again only in 3D mode) - both of these were already reported by other people.
Two more issues: on scene changes sometimes I can see squares - my guess is the image processing engine is not fast enough. Also, comparing the appearence of scrolling credits on "How to train your dragon", it seems that in 3D the horizontal resolution is much lower than in 2D (mind you - I am not describing the loss of vertical resolution here).
I bought this TV on December BestBuy sale. It was manufactured in Mexico. It has 1 HDMI and 1 DVI input, though BestBuy's description was stating (that page is now gone) it had 2 HDMI inputs. DVI port does not support framepacked 3D and seems to be video-only (no audio).