I Said, "No Negative Values"

I selected "Logarithmic scale" on an Excel 2007 graph that contained negative data points (which I didn't realize until it was too late). I was told in a not-so-subtle manner that this is a bad thing. Needless to say, I was graphing about 12,000 data points--only about 500 of which were negative. I would guess that this is also the number of error dialogs that popped up.

Should I select the "Was this information helpful?" link? Microsoft certainly seems to think so. I guess they're not really following the adage: less is more.

I'm going to start clicking OK on these babies--probably be done in about an hour.