The mouse pointer changes because of a scroll??

Computer Type: PC/Desktop
System Manufacturer/Model Number: Self Assembled
OS: Microsoft Windows 10 Pro Insider Preview 64-bit
CPU: Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz
Motherboard: Gigabyte Technology Co., Ltd. B85M-D3H
Memory: Corsair Vengence 4GB x2 (8.00GB Dual-Channel DDR3 @ 798MHz)
Graphics Card: 2047MB GeForce GTS 450 (ZOTAC International)
Sound Card: Onboard (Realtek High Definition Audio)
Monitor(s) Displays: LG Flatron E2040T
Screen Resolution: 1600x900
Keyboard: Logitech MK260r
Mouse: Logitech MK260r
PSU: Corsair VS550
Case: Cooler Master K380
Cooling: Cooler Master Seidon 120V Plus
Hard Drives: Western Digital 1 TB Seagate 500 GB
Internet Speed: PMPL Broadband
Browser: Firefox
Antivirus: Windows Defender + MBAM
Other Info: Dell Studio 15" Laptop