Hi there,
I like to use they tray icon to quickly tell if there is any network activity so I have set it to the thick bar graph.
Mostly this works well but I have found that sometimes even though there is activity the graph will be empty which makes it seem as if nothing is happening.
I'm guessing that this happens because:
1. The up/down bars are drawn relative to each other and the max up/down speed, which makes sense but if for example the download speed is a lot higher than the upload speed the upload bar will be empty
2. The maximum speed that the graph is drawn relative to is taken as the max speed found over some period of time
Her's what I suggest is:
1. Still draw the graphs relative to each other, but for each bar individually make sure to draw at least one bar if there is any activity
2. Instead of using the max speed found over some period of time use only the current speed to determine the height of the bars.