Windows 10: Dell E7240 Laptop shows FLASHING scroll bars in Win10 File Explorer

From time to time, the scroll bars of File Explorer flash. See the video, link is below. I don't see any pattern for it.



Bizarre. It's happening again. WHY?? I rebuilt this E7240 twice, reformatting the SSD. It seemed to be gone, but once again, I see the scroll bars of File Explorer flashing at times.


Here is what it looks like:

https://drive.google.com/open?id=1i2xCDQ_20lvMIFUdSfJlEjaDMJ5X6bSZ

Any ideas? I've never seen this happen on anything else before. HELP, PLEASE!

note: Here are current system specs. BIOS is up to date, as is Windows 10, all installed programs, as well.

Bizarre.

Operating System

Windows 10 Pro 64-bit

CPU

Intel Core i7 4600U @ 2.10GHz54 °C

Haswell ULT 22nm Technology

RAM

16.0GB Dual-Channel DDR3 @ 798MHz 11-11-11-28

Motherboard

Dell Inc. 05PTPV SOCKET 0

Graphics

Generic PnP Monitor 1366x768@60Hz

Intel HD Graphics Family Dell

Storage

238GB SAMSUNG SSD PM851 mSATA 256GB SATA SSD

:)

 

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