Jasperreports adds collapsed column at end of Excel report

[roarf]

See picture, all our reports gets an extra colapsed column at end of report.

I've tried all the tricks in the book to remove them:

• net.sf.jasperreports.export.xls.remove.empty.space.between.columns
• Aligning all cells so that there wil be no empty spaces
• Deleting all template elements, narrowing it down to just a clean master report with just a subreport, containing the detail band

Also tried printing just an completly empty report, and that generates empty sheet with 3 colapsed colums at first (A,B,C)