http://www.battle.net/forums/thread.aspx?fn=d2-gameplay&t=163465&p=1&#post163465
20. Why do people talk about the "Lying Character Screen", or LCS?
Because the screen flat out LIES about many important stats. Meaning that the numbers you see on the character screen are not the numbers the game actually uses. I do not think it has had any major updates since 1.06, so things like +damage modifiers, off-weapon ED%, etc. are NOT displayed correctly, if at all.
Gta-maloy] had this to say about it:
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Q u o t e:
That screen, in many circumstances, only properly shows resistances, the character's level, the experience gained and the damage dealt for the first two levels.
After that is done, it sucks.
Once you die, the Anya bug is not listed. (interjection: I, Ernir, will discuss the Anya bug below)
Masteries and synergies are not properly multiplied together, damage modifiers are completely ignored, the equations used for AR and damage are outdated....
The chance to block seems alright though :S
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Ortliebj added this:
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Q u o t e:
It is broken by the time you reach a place called the "Den of Evil".
There's even an old bug where your name can be displayed incorrectly.
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For the CORRECT damage and AR numbers, check this site.
http://dpw.bounceme.net/d2/