I am trying to install libxml2 using macport 1.6 and get the following errors:
--->  Fetching libxml2
--->  Verifying checksum(s) for libxml2
Error: Checksum (md5) mismatch for libxml2-2.6.30.tar.gz
Error: Checksum (sha1) mismatch for libxml2-2.6.30.tar.gz
Error: Checksum (rmd160) mismatch for libxml2-2.6.30.tar.gz
Error: Target org.macports.checksum returned: Unable to verify file checksums
Error: Status 1 encountered during processing.

I have tried to remove the downloaded file and start over -- that has lead to other issues.  How do I remove a port and start over?

Thanks

Michael