A spot small question

Sometimes will input in the frame to meet the cursor in has input the frame most left side (for instance when over a hundred degrees, each dozen of character cursor oneself will jump to most left), what’s all this about.Simultaneously I use when the cool dog its under pulls the menu to pause most above.When under me trundle strip, it automatically jumps to most above, very its person.I want to know that was the virus, why.Thanks Question supplement:Should a building friend not say that situation.

Jumps automatically to most?

Very possible was your keyboard edition area HOME key gives according.