Hi, Many thanks for your advice. I'll try that. The situation, to try and make it clearer is that currently I had two charts on at the same time, reduced in size and side by side, I think perhaps "session inactivity" may have some part to play as it is always if I go away for a cup of tea and when I come back the two charts have disappeared. Sometimes the main chart on the demo is still there but most times I have to sign in to IG again.