At my wit's end trying to get Windows7 Pro 64bit to recognize the Captivate either as a hard drive or media player (or anything). Get the "USB Device not recognized" every single time. Works as a storage device on XP laptop but not in media player mode other wise I could work around it. Tried the drivers from Samsung & also for the Galaxy S - uninstalling all drivers and reinstalling each time, then restarting both phone & computer & also unplugging the PSU connections to the motherboard which I read worked sometimes on some other forums. Even went and got a PCI-USB expansion card and same result. Don't really know what to do now besides reinstall Win7 which I really really don't wanna do. Wish there was some way to connect it in media player mode over bluetooth.