My system: Windows Vista32 Pro with current service pack and OS patches, .NET 3.x and .NET 4 installed.
Video card as reported by dxdiag below.
Logos4.0c RC4 (Build 9511) Resource: LLS:MTTROFDAYS or MTTROFDAYS.logos4, Page 150.
With the above book open to one of the many "tables" or boxed text, the outlines draw with "random" results.
With Logos4 Program Scaling=80% or 140% results are: Sometimes missing lines on the left. Sometimes fully correct. Sometimes double lines on top and below. Sometimes gaps in the corners. Results change with panel width.
With Program Scaling = 100%, no box lines are drawn, no matter the panel width.

Logos4 Program Scaling = 80% examples, different panel widths:



Program Scaling = 100%:

Program Scaling 140%:
