Internal Viewer-F3 Can't change colors

[Yesterday]

Dialog Box is messed up, and when you hit the Font button it freezes the box.
Background color will not change, Font color will not change
currently stuck with white on white
setting's inside or outside the viewer makes no different
Before if "link to file list" was active it would open behind freecommander now when active it opens as normal
using 933 with all updates to windows installed

[Karol]

Have you tried new instance?

Note option "Use scheme colors if active"

[Yesterday]

new instance does change font color but not background, scheme color on or off does nothing
using a fresh start with any version from 928 and up only change font color, am guessing windows update maybe the error
thank u for your reply...Karol