Hi,
My name is Satoshi Tanaka. I'm a developer of Mass++.
Mass++ 1.5.1 is released today.
It uses a database called SQLite when creating peaks matrix, so it
becomes more stable.
Please download and try the new version of Mass++.
http://www.massbank.jp/download.html
And Mass++ 1.5.1 requires "Microsoft Visual C++ 2008 Redistributable
Package".
Please be careful it is different from version1.4.0 or less.
For the details, please refer to
http://groups.google.com/group/massplusplus/web/download-install