Hi All, How to split the database and query sequences? for example,I downloded the formated the database and unpacked, I am getting ten files, in that two file with .nsd .nsq is the huge value, in this case how to format and which files? and how to split the query sequence? sorry if it is too basic! -bala- __________________________________________________ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos & More http://faith.yahoo.com