Dell U2715H monitor blurry font
I just bought a brand new Macbook Pro 15" Retina and a Dell monitor to hook up to it. The Dell is a U2715H, and I'm connecting the two through the Display Port cable that came with the monitor to the thunderbolt port of the MBP. All software is up to date (including OS X), and I ran all the tests on the monitor to show that it's fine. Video and pictures look good on the monitor, but unfortunately the fonts show up as blurry. The monitor is running its native resolution at 2560x1440 60Hz.
Does anyone know how to address this problem?
MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10.2)