Since "ugrading" to EN 5 (now 5.0.3), EN is much slower. It flickers and lags when I click on notes, particularly those with attachments. I have many notes with PDF attachments. Eventually, it will display the pdf correctly but it takes 1-2 seconds at times. There are also issues scrolling to the bottom of notes, where the bottom of notes / related notes lag and I get weird graphical errors. This Is on an essentially new laptop, windows 8.1 (also happened on 8). Any suggestions?