Express XY plot - Overplot timeline

I tried to plot a graph using the XY Express. The X axis is a timeline.
The problem starts to occur after 5 minutes. The X axis (timeline) doesn't move itself, but for instance, there is no problem if the timeline axis moves. The past is not too important for me, only two minutes of history, I have to check and analize.
You can view what is occuring as showed in the attached pictures.
How can I solve this problem?
Attachments:
test1.JPG ‏12 KB
test2.JPG ‏14 KB

The explaination:
There is a streaming that I connected to an Express XY graph. This streaming is linked to Y axis. The X axis is the timeline.
The problem is that after some time, as you can see at test2.jpg the time was 00:04:10 and in the instant after that it was 00:00:00. The X axis is receiving a timestamp data, that does not goes back to the past, so, this is the problem. Why the timeline is going back to the past?
Is there a solution for this problem?
Thank you in advance.
Message Edited by gborges on 06-30-2006 09:36 AM

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