Same problem on Win XP / IE7 but I could see with my local FlashPlayer.
Thomas, your panos show me two issues so I don't know what you were meaning by "rippel". As shown below: 1- in blue, some stitching issues. So you can check about detection quality (Control Points, links between non adjacent pictures... a lot of examples and explanation here).
As you don't give information about your camera/lens, your shots placement, your workflow and options under APP...
2- in green, waves under Flash viewer with .swf files of Flash version 9 and below. This have nothing to do with APP but more on Flash technology. Flash v10 is supposed to give better result but it's quite new and maybe not well implemented. KRPano is on the way to use this Flash improvment. I suggest you look also in KRPano categories here and also http://krpano.com/forum/wbb/index.php?page=Index
Marco, Paris Canon EOS 40D, EF-S 10-22, EF 24-105 LIS, EF 70-200 LIS - Canon G9 (wide-converter) DxO v7.5, Autopano Pro 2.6, PS CS5 and time