Taskbar thumbnail preview not working on aspire E5-771G

2mmy
2mmy Member Posts: 1 New User

When the power is plugged in the taskbar thumbnail preview is failing, jumps back to desktop.

But, when I  disconnect the power everything works fine. Using Windows 8.1 Where can I find the "overriding" power adjustment that does this? Is there some power managment from acer ?