than just go on the main page and go on benq -> blur busters strobe utility and do everything listed there, all steps but instead the VT tweak 1350 do VT 1500 tweak with 120Hz thats fine for u

or just send the monitor back and order a new one and hope it has v4
these are the settings fpr vt 1500 tweak by falkentyne
1920x1080, front porch 48 pixels, 3 lines; sync with 32 pixels, 5 lines; Horizontal total 2080, vertical total 1354/1360 (60hz), 1360 (75hz), 1354 (100hz; low reduction of crosstalk), 1497-1502 (high reduction of crosstalk, most refresh rates, use whichever value does NOT cause frameskipping in this test:
http://www.testufo.com/#test=photo&phot ... &height=-1
; frameskipping is very easy to notice with blur reduction)
For high reduction of crosstalk, these VT's are most reliable on XL2720Z. The 24" monitors may show different results.
125hz: 1497
120hz: HT 2001, VT 1499 (Displayport input; reduced HT to keep 8 bpc over displayport), VT 1500 (DVI input). I did not test VT 1350-VT 1354, but if you want lower/no faint horizontal lines artifacts but with more strobe crosstalk, HT 2080 and VT 1350-1354. Always test for frameskipping in TestUFO alien invasion !!