AOC Q3279VWF 31.5-Inch HDMI DVI Monitor resolution problem

[Rangz.indie]

hi
can anybody help cant seem to set my resolution the text is blurry and icons not right with my new monitor. resolution is set at 2560 x 1440 my spec is below iam connecting via dvi port.
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• CPU: Intel Core i5 4670K 3.40GHz

• CPU Cooler: Coolermaster Hyper 212 EVO

• Operating System: Windows 10 Pro

• Motherboard: Gigabyte Z87-HD3

• RAM: 32GB Corsair 1600MHz Vengence (4x8GB)

• SSD: Samsung 830 512GB

• HDD: 2TB

• Optical Drive: 22x DVDRW DL S-ATA

• Graphics Card: AMD Radeon R9 270X 2GB

• Wi-Fi: Wireless 802.11N 300Mbps MIMO PCI-E Card

• Case: Zalman Z11

• PSU: Corsair VS 550W

 

[Rangz.indie]

thanks for the replys ive sorted it now, only problem i have now is when i open a folder a big green number 1 appears on screen and changes the folder to full screen?