http://www.technelysium.com.au/chromas.html
The latest version is share ware but the older version is free.
I have a program available via FTP which allows you to open the
trace file and view information such as the signal strength for
the 4 bases. Chromas does not display this information.
FTP to toad.mbp.missouri.edu
login: abi
password: abi
Get the file ABIData.exe
Joe Forrester