error bars in excell 07

[John F]

Hello,

I'm trying to add error bars to a scatter graph. and i'm having a number of
problems. Firstly, when I add vertical error bars it automatically add
horizontal error bars. I can remove them by changing their value to 0 but is
there a way to disable this altogether?

Secondly sometimes when I do this i get a black triangle over my graph, I
can't remove this without deleting my error bars. Any ideas?

Thanks

John