I am having the same problem on my 1997 Toyota XLE. It has 199,000 miles on it. When driving on the hiway, straight, there is a rubbing noise or vibration. The noice continues when I veer to the left (or gets a little worse), but goes away completely when I veer to the right. I've just had my brakes done, front-end aligned, and tires balanced.
(I also periodically have some white smoke coming out of the exhause upon start-up)
Friday, June 29th, 2007 AT 5:24 PM