Maximum PC: There are some growing pains associated with 4K displays, at least for PCs. Quirky issues tend to pop up due to the way the technology works. To run a 4K panel at 60Hz, you need to use a DisplayPort cable, which supports the refresh rate using Multi-Stream Transport (MST). However, this essentially treats a 4K panel as two displays, which introduces weird side effects. A new hotfix from Nvidia is intended to address these issues.