Big Block of "Dead" Pixels ONLY on Login Screen?

[tastyjerk]

Hey y'all! Finally stopped lurking and decided to make an account and start jumping in to the community.

First thing is a weird issue that I can't figure out. Whenever my computer boots up and goes to the Login screen, there's about a 50/50 chance or so of a big block of "dead" pixels just sitting there right in the middle of the screen. First thing I thought was that my monitor was dying, but then I discovered that whenever it happens, it disappears whenever I login.

No matter how long I take to log in, it stays until I login and then it's gone. Re-installed the graphics drivers and that didn't change anything. My i5-3570 has been a little warm lately (70c under general gaming like Portal 2 or something) but I'm gonna get a new cooler soon and figured it wasn't that. Then I had this revelation this morning:

Turns out that big ol' block is apparently my mouse cursor... until I log in. Then it's just a normal mouse cursor. So, Windows issue? Any idea how to fix it?

Hardware:

• 
  OS: Windows 10 64-bit, fully updated
  CPU: i5-3570
  RAM: 16GB 1600mhz
  GPU: Gigabyte Mini-ITX GeForce GTX 970

 

[COLGeek]

What make/model mouse are you using? Also, did you load any special drivers for it?

 

[tastyjerk]

What make/model mouse are you using? Also, did you load any special drivers for it?

Old gaming mouse that's probably not long for the world, a Logitech G5. It has special drivers but I haven't installed them, just use it as a normal mouse. Think its the lack of the specific drivers?

 

[COLGeek]

Probably not, the generic drivers should be fine. By chance, do you have another mouse that you could swap to see if it makes a difference?

Also, have you updated your video drivers lately? Video drivers can cause these issues as well.

 

[tastyjerk]

Probably not, the generic drivers should be fine. By chance, do you have another mouse that you could swap to see if it makes a difference?

Also, have you updated your video drivers lately? Video drivers can cause these issues as well.

Yeah, fully up to date with the video drivers! I just re-installed them too, curious if it was the issue at first. I have a spare bluetooth mouse that I can try next.

 

[COLGeek]

Of course, you could get the Logitech Win 10 drivers/software and try that as well.

http://support.logitech.com/en_us/product/g5-laser-mouse

BTW, I had a G5 for many years and I really liked it. Nice mouse.