Hi there, I think I'm having much the same problem as the original poster. I run Ubuntu (feisty, fairly up-to-date) and Windows XP on a Celeron. Under Win it runs OK, but under Linux the computer gets horribly slow when I plug the wireless adapter in and it halts when I plug it out. This is a link to a page here which describes the USB adapter I'm using:
I couldn't even try to kill the IPv6 process as the first reply suggested, since the computer was effectively down. The second reply, as far as I understand it, suggests that the problem might be this: both the USB and the monitor are connected through the same way into the motherboard, which causes a conflict, so I'd have to separate that. Well, judging from the way I can plug things on the back of the box, both the video and the USB controllers are inbuilt on the motherboard, so I don't know if I'd be able to do the job. I'd like ideas on that, please.
English isn't my mother language and I quite lack technical terms, so if anyone who'd answer could kindly use simple language and describe the objects and parts, instead of just naming them, that'd be very appreciated.
Thanks a lot,
PS: since I'd rely on that adapter to use Internet on that machine, it'd be a little complicated for me to post outputs from lspci or stuff like that here. If it's absolutely necessary, then I'd do it.