I have some PDFs (two-column, academic journal style papers) that I have been reading and trying to highlight text in. I've had my EE for a little under a week but the first few days, highlighting was fine. Within the past few days, I've noticed that trying to highlight text causes the reader to lock up for several minutes. I will try to do things like change the page, switch tools (e.g. change to erase mode) but nothing will happen for several minutes, at which time all the operations that I tried to do will quickly happen. This happens every time I try to highlight text, so it is basically unusable. All the other features (including annotations) are working fine.

I've submitted a support ticket already but I was wondering if anyone else has experienced this problem.