Ciao
scusatemi, ma non mi sembra che il mio sia un caso isolato (e poi questo problema non è visibile durante la normale visione del tv), ho appena letto la review di Hdtv test è riporta:
Screen uniformity Clouding reducible to negligible levels
Screen/ Backlight Uniformity
Initially some clouding/ mura could be seen with the default factory settings, but proper calibration reduced this notorious uniformity problem to negliglble levels on the Sony KDL40W4000. Nitpickers might notice the slightest hint of backlight bleed at the top left corner, and lightness at the sides of the screen, but then again we haven't seen any LCD televisions above the size of 40" that could match the generally perfect screen uniformity of plasma TVs.
Cons
Slight clouding and LCD backlight bleed (though negligible once calibrated)
Correggetemi se sbaglio, ma sembra parlare del mio problema....