As for the issue you have, what is your resolution (I believe minimum resolution is 1440×900) and check if you have Scale and layout setting in Windows set to 100% and not more.
I'm new to A4x and installed C# 1. 51, and just started designing a ship class. The line containing maintenance info only displays MSP and MAx Repair. I was expecting to see extra info like MaintLife, AFR, IFR etc. What am I missing?