I'm also having a problem with my Zonet ZEW2500P USB Wireless Adapter, which uses the rt2570 kernel module. I've compiled the latest CVS from rt2x00.serialmonkey.com, but it only lasts longer than the original module before burning out and going "kaput". -- Ralink Wireless USB/PCMCIA/PCI hangs PC https://launchpad.net/bugs/34902