Twitter keyboard shortcuts "N" and "P" are broken with update 10.4.31.9

Question

The latest update to Twitter (version 10.4.31.9) has broken the shortcut keys "N" and "P" for next and previous. It's frustrating not having those shortcuts for navigating tweets. "SPACE" and SHIFT+SPACE" still work for page down and up.
I've uninstalled and reinstalled twice and rebooted numerious times to no avail.
I hope a future update will correct this.
Thanks

Answer 1

The problem is that despite having connected to my Netgear Router via Airport Wireless, I'm can't connect to the Internet.
Before the 10.4.9 update everything was fine. The MacMini is working fine (haven't risked the update for it), and my wife can connect with a Windows XP notebook fine. So the problem is definalty on the G4 TiBook.
I've tried switching between dynamic and fixed DNS with no luck.
When I switch it to dynamic is gets an IP address which is out of the range that the router is set to assign. i.e. the TiBook IP Address gets something like 169.254.134.187. However the Netgear Router which is acting as a DCHP server is set to give IP Address in the range 192.168.0.2 to 192.168.0.100.
Setting the TiBook manually does not work either.
The router itself has the IP 192.168.0.1. Pinging it I get 'No route to host', or 'Host is down'.
I've tried everything from checking cables, resetting, deleting the Airport network and reconnecting, restarting everything. No luck. Just not impressed at all.