Well, I don't own a VG191, but the specifications indicate it has a 25ms response time. I think all the latest LCD technologies (asi-tft, mva), have 25ms response times. I'm looking to replace a Samsung 170t I had with a larger LCD, either the VG191, or the Samsung 181t. The Samsung uses a asi-tft screen, and supposedly has a 25ms response time, and the only time I ever noticed ghosting on the 170t was when I scrolled a webpage or text extremely fast, so fast I couldnt read it anyways. I never noticed any ghosting in games, or any other programs, but some people claim they can with the 25ms displays, so YMMV. The VG151 specifications Rogue1979 refers to only has a 40ms response time, so that would explain the noticeable ghosting issue with that particular model. Ive been doing a lot of research lately, but unfortunately I don't have anywhere locally to view either monitor, so I have just manufacturer specifications and user/online reviews to go by.