So I was drawing some random stuff in Autodesk sketchbook and I noticed that I couldn't draw a straight line in a particular area. So I tried again in S note, and tried drawing straight diagonal and vertical lines using a ruler, and this is what I got
https://s3.amazonaws.com/pushbullet-uploads/udfyd-vGngLugF3z…
Is the tablet defective? Is it something that I can do or will I have to get a replacement/repaired?
If you root your tablet you may be able to sort of 'recalibrate' it
https://play.google.com/store/apps/details?id=com.whitedavid…
but this 's-pen' drifing is apparently a very common flow on Samsung Note devices. My brother's Galaxy note II phone also has a small portion of the touchscreen (lower right hand corner) ignoring the s-pen completely and drifting a few pixels off in the six o'clock portion.