Strange line in graph plot

Howdy all!
I'm doing a simple temperature/time graph using LabView 8.5. The results look good except for an odd diagonal line that connects from somewhere on the x-axis to the latest point placed on the graph. As the graph adds new points of data, this line moves along with the new data. I've included a picture of the graph. Anyone have any idea what's causing this?
Amateur programmer for over 10 years!
Attachments:
LabView graph results.doc ‏29 KB

It's a hectic day today, so I haven't had a chance to do the code changes you requested. M'bad.
But I will give you this info - it's a simple serial communication with an external device that replies with temperature readings. Roughly every ten seconds I interrogate the device for a temperature reading, which is read into the "Temp array". I'm including another snapshot (a jpg!) of my latest run, and here are the values in the arrays:
array   time        temp
0         4.0          80
1         13.12      80
2         22.26      79
3         33.29      79
4         42.42      80
5         51.54    84
6         62.57      86
7         71.70      85
8         82.73      84
I stopped the run at this point. All array values are zero from here out.
And I LIKE LOCAL VARIABLES!! There! I said it! And I'm not ashamed!!
Message Edited by spaceman spif on 01-28-2008 11:09 AM
Amateur programmer for over 10 years!
Attachments:
graph.JPG ‏17 KB

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