Slow and intermittant wireless
I have installed Karmic on a friends Toshiba laptop for him and it is using a Buffalo WLI-CB-G54HP pcmcia wireless card. I used the b43-fwcutter driver and at my house with a Linksys router running Tomato firmware it connects to the Internet OK. When I gave it to my friend who has a Tiscali Siemens SE587 router it doesn't work well at all. Web browsing is slow and keeps locking up. DNS resolution is intermittent and I cannot even get to teh routers setup page via HTML often. The wireless connection seems to keep dropping and connecting.
A Windows laptop on works fine with the same router as does the Toshiba if I connect via an Ethernet cable instead of wireless. I have tried turning of IPv6 support both in Firefox and system wide by grub and that doesnt help. This one is driving me crazy.