"Are you using a wireless USB adapter to connect to your router? "
Let me explain. I'm using those little Linksys Wireless - G (USB Network Adapter) to connect to the main router in the house. I'm using an USB cable to connect it to the pc.
It's not a cable problem because I've tried different cables, and different USB devices.
Something I didn't tell to Miniman is that:
I can have a cable plugged in (only the cable indeed), and if I just unplug it, my internet just goes down. (And yes, only the cable - and you usually don't have the "Safely Remove Hardware" option if you only have a cable plugged in )
Teenage Mutant Ninja Turtles Arcade is twenty years old and still is a blast to play. Other than that, Ninja Gaiden II, DMC4, and Dead Rising are all a blast. I think Dead Rising is probably the closest thing to some of the old school beat-em-ups.