What do you mean by "Window Tap"? The Pet Palette?
I can think of two things:
1. Go to the Work Environment Dialog and set it back to Standard Profile. Th Palette positons may have shifted and this would reset them back to the default settings.
2. Try to update you graphics card drivers. It may be some driver issue that cuases you Pet Palette to disapper.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27