eclipse icon missing while switching through applications in unity

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http://askubuntu.com – I installed eclipse directly from the eclipse site and added it to unity launcher as mentioned here. But when I cycle through applications using ctrl-R, I cannot see eclipse. Couple of times, I had to kill eclipse using kill command and restart eclipse just to access it. But later I found out that if I select desktop icon while switching, I can access eclipse. How to get an independent eclipse icon while switching applications using ctrl-R ? Thanks suresh (HowTos)