Hi Ragy, thank you for the screenshot. This looks very weird, I haven't seen anything like that. Also the button bar has a much larger spacing than usually. I guess there is something wrong the DPI scaling settings. Could you try the following: Right click on the shortcut icon of PV*SOL on your desktop If you don't have a shortcut icon there, locate the PVSOLpremium.exe in C:\Program Files (x86)\Valentin EnergieSoftware\PVSOL premium 2020, and right clik there Select Pr