Recently took delivery of a Toshiba 32ZP38 to replace my old Panasonic TX-29AD2DP, and I'm having real trouble watching the new set from any of my available sources. Basically, the problem I have is that within about 5 minutes viewing, I get a pressure headache and some vision disturbances. I never got this with the old set, and have since hooked up the old Panny for a comparison. There is also (and I suspect this may be the cause of the problem) a noticable lag in any movement on screen e.g. when a figure walks across the screen, or when the camera pans across the field of view. My first instinct was to try out every available setting on the Tosh's picture menu: I've changed the brightness, contrast, scanning mode, DNR, have saved settings from preset 3 in an attempt to switch off SVM, and have played with the sharpness level. Whilst these changes have clearly affected the PQ, no combination seems to improves the level of lag, and certainly nothing seems to relieve the headaches! Rang Toshiba, who suggested the obvious setting tweaks: interestingly, they claimed that there should be a clear difference between the 'Natural' and 'Active' settings, implying that the former was 50Hz and the latter 100Hz. However, there is absolutely no difference between the two modes on the set I have; because of this, Toshiba are swapping out my set with another, since they think there might be a fault on the one I have now. We'll see whether the new set improves matters, but I wondered whether anyone out there has had (or heard of) a similar problem, particularly with Tosh PF2 sets. Is this just a 100Hz problem? This may well just be a problem with my eyes: if so, does anyone know whether any particular model is better than the others for weirdos like me? P.S. My sources are: NTL Pace Set-top box via RGB SCART into RGB AV input on the Tosh, and a Pioneer DVD player - problem is evident on both sources.