Very long story, ill try to be simple. for a reason, i cant have my keyboard plugged into my iMac, i have an external usb hub, which is closer to my keyboard tray, and thats where i plug in my keyboard, my mouse is connected to the right usb plug. putting my keyboard and mouse on my actual desk is not an option, nor is getting a bluetooth keyboard and mouse! my external usb (belkin), is connected to the power, so that devices that need extra power, can have it because my belkin usb hub has a power cord. my small 2gb usb flash drive has a light on it that flashes whenever the computer is reading or writing something to it. i like to use this on my LEFT usb plug on my keyboard, when connected to my belkin usb hub, it states it needs more power for the usb drive, im guessing it because of the light, and again, it has a power cord i put the keyboard on my desk instead of keyboard tray temporarily to plug it into the imac's usb port. the left usb plug works just fine!!!!! i can plug in my usb drive. Now, i have another problem, when ever my mouse is connected to the keyboard (as usual), and plugged into the usb hub, sometimes the mouse flies across the computer screen, but when its connectdc through the imac's usb hub, it doesnt. im considering getting a usb extention for my keyboard cable, my MM will still be connected to the keyboard, and the usb extension will go straight to the imac, does anyone recommend a cheap (under $6) usb extension from here? i dont care about color, just a good one, that works, and also a trusted brand, thanx ALOT in advance!!!! EDIT: do you think an extension will fix the problem?