Ok, so a few weeks ago my accommodation block at uni switched to wireless-only networking. I've had to start using a shitty old USB wireless dongle that I have, and since doing so I've been running into a couple of problems. The timing may or may not be a coincidence. Every couple of days or so the system hangs. Music keeps playing but the mouse and keyboard do nothing, even when unplugged and plugged back in. The system clock does not advance. The event manager reveals nothing other than the unexpected shutdown. Frequently cursor movement becomes stuttery. This can be fixed by unplugging the mouse and plugging it back in again, or sometimes by banging the mouse on the table. My mouse is a Steelseries Ikari Optical, and my crap old USB wireless device is an Edimax EW-7318USg. I've tried various releases of the USB wireless driver to no avail. I've been running my system at stock since the problem started, so as to rule out my overclock as a possible cause. Other system specs are listed as "the one under the desk" in my system specs. Any ideas?