y-axis should adjust to correct values

[walery]

I'm showing dbi values on my diagram. This value is consistently falling down. I start with 120k and it decrease to 0 (this takes approx. 16-18 hours).

That means after 8 hours half of my jobs are almost done. If I look to "last hour" my y-axis has max value 97k. If i change it to "last 12 hours" max value should be smth. around 120k. But it is still 97k. I'm not able to see my diagram completely.

Are there some solutions for this Problem?

Thx Walery

PS: I made some screenshots to show this problem.

http://79.140.50.46/frn/lastHout.png http://79.140.50.46/frn/last12Hours.png