I've noticed that it often will jump down to the middle of a post rather than the top of the last unread (when it doesn't just totally flake out and choose the first post or just the bottom of the page).

CJSF

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Two years ago moved from my town
I was looking up past the city lights
But the city lights got in my way

See the constellation ride across the sky
No cigar, no lady on his arm
Just a guy made of dots and lines

-from "See The Constellation"
by They Might Be Giants