Yeah, I learned to NOT upgrade GL, and other LDS apps for that matter, if they are working fine. On multiple occasions, the upgrade took features away or caused the app to work worse than it was working before.
BTW, I prefer GL 2.5 over 3.0. There are a couple things better on 3.0 but overall, I prefer the reading experience on 2.5 better. I do not like that the annotations and links are now mixed in with the footnotes on 3.0. I like the way 2.5 looked in that regard.