yes, what happens is every now and then the image will twitch or flicker, it seems to happen randomly but like every 15-20 minutes but sometimes longer. yes my display cable is HDMI and its firmly connected, ive used it with my old video card and there was no issues. actually its not been twitching as often, it was doing it this morning quite often, but ive not seen it do it in awhile, my system specs are as follows:

CPU:  AMD Athlon X4 860K (Quad-Core)
GPU:  Club3D R9 280X RoyalQueen
RAM: 12 GB DDR3, Corsair & Kingston
SSD:  ADATA SX900 128 GB
HDD:  2 TB Western Digital
PSU:  Corsair CX600M 600 watt
MBD: Gigabyte GA-F2A88XM-D3H (rev 3)
OS:  Windows 10 Build 10130 (64-bit)