I also echo what Rad has to say about pulsing, and add that you need to make sure power saving is indeed off. Also in regards to IVC, I've noticed that using IVC low, does seem to almost get rid of pulsing entirely. Here is some settings I used to use when I first got the set, and played with trying to get rid of pulsing... Mind you, this was all done by eye, and no equipment was used to come up with these.
Thx mode
IVC LOW
Backlight +2
Contrast +28
Brightness 0
Tint 0
Sharpness +1
Hue R0, Y-2, G+4, C0, B-3, M+6
Saturation R0, Y-5, G+2, C+8, B+1, M0
Value R+5, Y+2, G-2, C-13, B+8, M-2
Color temp low
10 point on
1: R+15, G-4, B0
2: R+6, G-8, B-15
3: R+6, G-5, B-15
4: R0, G-4, B-18
5: R0, G-4, B-19
6: R0, G-3, B-18
7: R-1, G-5, B-19
8: R0, G-6, B-19
9: R0, G-5, B-20
10: R0, G0, B-15
Motion enhance 120 low
Gamma adj. -1
All other advanced processing off