At startup you should be fine, After Windows load that where you need to be careful of the resolution. First I flashed one of the AMD/ATI 4550 cards using ATOM-15 modified BIOS. The setting I selected when patching the ATI BIOS for my Tri Sync monitor 15/31Khz. Before switching anything to your Arcade Tri Sync monitor you need to make sure your Windows VGA resolution is at least 800x600. Once you have followed Calamity's Crt_Emudriver install and verified its working , open up Arcade OSD and select 640x480p resolution not Interlace and apply it as a desktop then switch the cable to your Tri Sync, turn it ON. you should get a picture with proper sync. This is my first post. I'm not an expert. Calamity built this awesome program.