Window is not functioning properly
Most of the time the reason the window does not stay up is because one or more of the balance shoes have come off the pivot bar in the window. THIS IS NOT A DAMAGED WINDOW.
Window is not locking
Please review the scenarios to correct your locking problem.
Condensation on Windows
Common household condensation, or “sweating” on windows is caused by excess humidity or water vapor in the air comes in contact with a cold surface such as a mirror or glass window, it turns to water droplets and is called condensation.