txrandom, if Harris county is where you registered and still want to vote - You can come back to Harris county to your polling place to vote or you can vote by mail.
If you want to vote in Brazos county, you must re-register to vote in Brazos county by October 10th. From the link in the previous post:
"If you moved to a new county, you must re-register in your new county of residence by October 10, 2006 to be eligible to vote in the November 7, 2006 General Election. If you miss this deadline, you may be eligible to vote a "limited" ballot. A limited ballot is available only during the early voting period. The limited ballot application will also act as a voter registration application. Contact the county clerk or elections administrator in your new county for information. You can also find information on this topic by going to....
Brazos County Clerk's contact info:
County Clerk
Karen McQueen
300 E. 26th St., Ste. 120, Bryan 77803
Tel: (979) 361-4135
Fax: (979) 361-4125
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"With respect to election officials and others who often provide advice to students about certain residency issues for voter registration purposes, please inform a student that if they consider their parents address to be their permanent residence, they may use that address as their registration address. If they would like to register to vote at their college address, they may do so. However, students cannot be registered at both places. The general rule of thumb for election officials and those engaged in voter registration drives is that wherever the student claims residency, that is where they should be registered to vote."
From
http://www.sos.state.tx.us/elections/voter/studentvoters.shtml