Screen problem

[habben]

My screen can't show my system entirely,there is always a part of its interface under the border of the screen.

[AlHill]

You provided absolutely no information about your system.

What system (manufacturer, model, motherboard, processor, etc)

What screen (provide monitor model number)

What OS (provide actual version number).

Doc (not an Intel employee or contractor)
[Success breeds complacency. Complacency breeds failure. (Andy Grove)]