Invoking the "Mini View" screen results in a corrupted display panel -but only if the MC Player window was in a Maximized state. If the Player is not filling close to the entire screen then Mini View will display normally. In the attached screen-cap I'm using a version of the Carbon skin, but the problem occurs with all skins. All of the other Views display as expected, with only the Mini View having trouble in v20.0.100
I have reproduced this same problem on a 2nd machine: My main computer runs Windows 8.0 64-bit, so I installed v20.0.99 on an older Windows 7 32-bit PC that had been running MC v20.0.84 and the same problem with the Mini-View display happened immediately. The second attached screen-cap shows that Win7 computer using the "Blue Steel" skin in Mini View.
Next, I reverted to v20.0.93 (latest stable version) and the Mini-View screen returned to its normal behavior. Nice.
Reinstalling v20.0.100 caused the corrupted Mini-View problem to return. So this is a replicable problem.
Looking in the "C:\Users\---\AppData\Roaming\J River\Media Center 20\Install\" folder showed previous installations:
v20.0.93 on 4/10/2015
v20.0.96 on 4/21/2015 at 10:16am
v20.0.99 on 4/21/2015 at 2:17pm
I installed v20.0.96 and observed the corrupted Mini-View. This means that the problem is caused by changes made to MC revision .94, .95 or .96
Yesterday, after reading forum Post#1 on the .99 release page about the Font Size Initialization problems I decided to try some manipulations to see if there were also some screen sizing issues, and that's how I found this Mini View problem occurs only when it is switching from displaying a window that's in Maximized mode. Hopefully this new clue will help to track down the bug.