video corruption on new dell 5420 laptop

we are using Microstation V8i and we just got a new dell laptop and installed micrstation on it.

when you first open a drawing file it looks fine but if I click on a line on any spot on any drawing and then click on a second line small grey garbage characters

appear between the 2 linesif you click on opposite sides of the drawing the characters fill in the witdth of the line and as you click on more lines the whole screen is eventually fills with these garbage characters.

and as i move my cursor along any of the lines the garbage characters kind of move an jump around. has anyone seen anything like this?

I have tried updating the windows 10 video drivers and i have been looking for display settings in microstation that might make a difference but so far no luck.