So recently I was messing around with the timeline settings and this happened. The arrows next to each layer do not show, and the source name also doesn't show. I have tried: a. Resetting my workspace settings. B. Checking the column settings (source name is greyed out for some reason). C. Reinstalled Adobe After Effects (version: CS4). If anyone could help that would be greatly appreciated as this is a great annoyance and I can't work on any project because of these issues.