Neverborn

I just started general physics, so this will probably be pretty basic for most of you. The instructor covered two dimensional vectors in lecture, and then gave us a bunch of homework involving three dimensional vectors. The book skips it completely, so I would like to know if I'm on the right track.

Vector A = 2i - 4j + k

if I ignore the z component, I can find the angle with respect to x by making a triangle in the fourth quadrant.
arctan (-4/2) = -63.4, so my angle is about 296.6.

I'm not sure how to get my other angle though. Do I make a new plane between the z axis and the hypotenuse of that first triangle? I could make a new vector of sqrt 20 in the (i, -j) direction and 1 in the z direction. arctan (1/sqrt20) is about 12.6 degrees from that plane towards the z axis.

Am I way out in left field making this super complicated or am I at least batting in the right direction?

Here's my problem:

I have two desktops running XP Sp3, and one of them is connected to the household internet via a wireless adapter. Since I only have one of these, I enabled internet connection sharing on its computer and ran a jumper to the other computer. I set up the host computer to share its internet connection, and told it to take an IP of 192.168.0.1 on its LAN card.

The other computer was getting the dreaded limited or no connectivity thing, so I told it to use an ip of 192.168.0.2 and use the 192.168.0.1 as its gateway and preferred DNS server. Worked fine for about a day, then stopped. Network was up and file sharing works, but web browsers on the client computer could not establish a connection to the outside. I tried repairing the connection, then restarted and it worked again.

Then today, it's not working again. Most sites I've seen suggest letting the client computer pull its IP from the host computer via DHCP, but when I do that it still says limited connectivity and gives me the automatic 169...etc ip.

I've tried resetting TCP/IP and winsock via those netsh commands I've seen people throw around, but still no luck.

I noticed there are DHCP options in the advanced -> ics -> settings page under my wireless network connection, but playing around with them doesn't seem to do anything. It says DHCP is enabled in any case under tcp/ip properties.

Any other ideas?

Any other ideas?

trying to self-study some japanese to get out of my school's language requirement without taking the class, and I have a quick question about frequency adverbs:

Are these both appropriate ways to say "I often read books?"

watashiwa hon o yoku yomimasu
watashiwa yoku hon o yomimasu

If so, is one more natural sounding? Basically I'm wondering if it's okay to stick the adverb anywhere in the sentence.

Also since I'm here, yoku can mean either often or well (as in yoku hanasemasu, or can speak well). Is context your only clue to differentiate these two rather different meanings?