I am producing a series of line charts. The problem arises where there is a missing value (or a value outside the min/max value range). In this case the line jumps the the bottom or top of the chart. What I require is the ability to leave gaps in the line when this occurs so that the trend is still visible but the fact that there are missing (or suspect) values is shown. This feature is possible in Excel but I have not been able to find anything similar in VB6.