I've been using my flashes, both on and off camera, quite a bit. However, over the past few months, the 580EX has developed some hot-shoe contact issues and will intermittently NOT fire. I think the issues is one of the spring-loaded contacts on the flash - if I pull the flash lightly towards me when it is in the hot-shoe, it connects. If the flash is pulled forward (as when shooting downwards), the flash doesn't fire. No such problem with a 430EX that I have. I've also noticed that if I use the remote ETTL cable, say with the flash on a flash bracket, the flash again does not fire if it is tilted forward. I've picked up the idea (from some other forums), that this is a problem that is not uncommon for the 580EX flashes. If so, has anyone else on TPF using this equipment had this kind of issue, and how did you resolve it? Yes, sending it for repairs is always an option, but maybe there is a simpler way of getting this to work. Any insight will be appreciated.