Installed five-icon dock recently and noticed that one of the icons I have in the dock (Osfoora) disappears from time to time. I'm not sure why or how it happens but it's annoying. It's a bigger problem for me because I have 11 pages of icons and they're all full so once it disappears it's kind of a pain to get it back. Anyone else experience this and/or have a fix? Thx.