Quote -  Yes, and no explanation what was fixed.....

[sarcasm] I believe they fixed the library refresh speed. You see, I complained that it ran too good! So this new SR slows it down superbly! /[sarcasm]    :o)

Actually, I'm not 100% convinced that the SR2.1 is what's causing the refresh lag. Still investigating....

One thing that the read me located in the installer mentioned was an improved speed on IDL rendering.

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AMD FX-9590 4.7ghz 8-core, 32gb of RAM, Win7 64bit, nVidia GeForce GTX 760

PoserPro2012, Photoshop CS4 and Magix Music Maker

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...and when the day is dawning...I have to say goodbye...a last look back into...your broken eyes.