AspirenceBI

I was able to install the trial version and get the web parts to appear, but when I put one on the page, the page would no longer show (403 Forbidden Error). I had to remove the web parts and retract the softwarefx.dataparts.wsp solution from Central Administration > Operations > Solution Management before I could get at the page again so I could remove the web part. Any idea why the 403 Fobbiden error occured?