I hope you guys must have got the answer to this by now but if not here it is ..
The issue is that in 22.214.171.124.0 a new style and skin are introduced FusionFX.
The searching image on lower version was "searching.gif" while in this version it is "searching_light.gif".
All you need to do is take that image frrom
<MWHOME>\Oracle_BI1\bifoundation\web\appv2\res\s_FusionFX\views\searching_light.gif and put it in
Put this in bi_server1 working directory for analystics as well..which will be something like this ..
If you have any custom style or skin ..change there.
Also keep in mind that this image is new and if you want to keep the old image just copy the same image to the location above and rename it to "searching_light.gif". Make a copy since old one is still used in reports.
Hope this helps.
Mark helpfull if you find it that way.