Keeping screen resolution setting


Active Member
I just had a PC built with Windows 10. I use a 30" Sanyo TV as a monitor. I set resolution to 1360 x 768 (recommended). If the P{C goes to sleep it reverts to 640 x 480. Sometimes if I restart the PC it goes back to 1360 x 768 when it comes back up, sometimes it does not. When it goes to the 640 x 480 it will not let me change the resolution from the display settings page. Is this being caused because of the TV? Would changing to an actual monitor alleviate the problem? Thanks in advance for any and all answers.