I have create and published a BO document in the repository. This document contains a line chart. From BO the format looks good. From Webi, using Enhanced for browser, the x-axis label appear horizontal. From BO they are vertical. I have tried looking at the BO axis properties (auto and various visual orientations). Non of these setting hold when viewed by Webi clients. Is this possibly due to the default printer used on the Webi server (i.e. HP LaserJet 4)?
I already had this problem when vertical x-axis label. The fix was to use another font for the label (for instance : Calisto MT). It’s maybe a solution for you.
Try setting the Option in WebI, Standard HTML format for viewing the report. I had a similar problem of viewing full client reports in WebI where it cut the report into multiple pages, both horizontally and vertically.