Hello there. I am a DM in my current session and thus far everything seemed to work fine with roll 20. I could use maps, battle maps, tokens etc. Couple of months back however, I was unable to see anything. I could drag and drop images onto the space where the grid is supposed to be but nothing shows up. My players however are able to see everything I put up there. Now I know my PC is not in the best condition, so I tried using another one and there roll20 worked just fine. I could see everything again. However I need to make roll20 work on my main PC, I can't run games like that. Any suggestions?