problem with pioneer 5090H?

[dmtrpapa]

hello...
i have pioneer 5090h.
all ok but i see one thing at the panel.
when see one absolutly dark scene,the left side from panel,is some more bright from the right side.
play break-in 100 hours and the "problem" is better.but there is here yet...
sometimes is all ok but sometimes i see the difference.
the difference is very small but i see...
i believe how the "problem" fix after some hours but fear lest is problem.
i see....

i wanted one help.

thanks

sorry for my english...