Why Cant I Erase in ARES ??

there are a few stuffs there I had been trying to cancel in my ARES. how come it is not responding. the stuffs i am downloading just says Connecting, and does not change status, as if it is not responding. i tried to uninstall it and install back several time just to attempt to erase my unwanted downloads, but whenever i install it again, the unerased downloads are there. it was working fine the other day .... please help.