Still waiting on my Ativ Q but in the meantime have noticed that occasionally in Modern UI IE 11 I get a 1 pixel high flickering white horizontal line when scrolling. It is odd because it only seems to appear on certain web pages but it is never the same ones. If I surf to another page the flickering stops. Have Googled this but doesn't appear to be a widespread problem. Any ideas? 8.1 issue? GPU going bad? Web page coding issue? I plan on giving this to my GF and would prefer it to be perfect.