Hmm...
A little over a year ago, I was watching Star Trek: Voyager, Season 6, Episode 20: Good Shepherd, and I noticed something funny on one of the LCARS screens. Remember that? Here's the image to jog your memory... (Note the arrow above the guy's thumb!)

Now today, in my mission to re-watch the Voyager series, I watched the episode once again and noticed another interesting phenomenon on the Delta Flyer's LCARS. This time, it's a monitor on the bio-bed. Here's what the computer looked like in its natural environment:

Looks normal... Now, check it out a few minutes later:

I'm not sure what happened to the continuity crew on this episode...