I updated to OS 10.5.6 and now an application called "iCal helper" keeps launching and appearing in the dock. It is not set up to launch on login and if i close it, it will re-open and appear in the dock a little while later. I can't drag it off the dock because it keeps re-appearing. Does anyone know what iCal helper is and why I can't get it off my dock?? I've attached a picture, uhhh, just for fun I guess... Thanks for the help.