Windows 10: Weird cursor problem on 1 monitor with dual screen(pictures available)

hello,

I have been using dual screen for a while now. But recently my mouse has been changing randomly on my second monitor. When I start my PC theres litterally no problem but after a while the cursor randomly changes to what you can see on the pictures below. I'm not using a custom cursor.
The only difference between the 2 monitors is that one is connected with HDMI and 1 is connected with a DVI kable into a DVI to DP converter on the graphics card. The HDMI monitor is the one ruining it.

(sorry for the bad picture quality, my cursor does not display on screenshots and I couldn't find how to change that)





The picture with the black box is the cursor hovering a textbox.

:)

 

Screensaver slideshow does not display correctly whith dual monitors set to "extend desktop"

Objective: I have dual monitors (as an extended desktop, side by side) and want it to show my own pictures as a screensaver slideshow in Windows 10.

Problem: Only the lower half ot the picture is diplayes in the top half of monitor 1. Monitor 2 is black.

Addtional observations:

• In "Screen Saver Settings" the small mock-up display looks fine, however when i select "Preview" the problem with only half the picture displayed occurs also in the preview.
• The problem does not occur with only one monitor in use
• The problem does not occur with dual monitors set to "Duplicate these displays"

Gratefull for all suggestions to solve the problem

The same picture also work fine as desctop background with different pictures displayed on each monitor.

 

Dual monitor in Windows 10

The cursor glitches problem mentioned in another post is exacerbated with dual monitors. The cursor randomly jumps from one monitor to another making the second monitor unusable.