[Hampshire] Size matters

Hello folks

Is it me, or is 'find' not working properly on my system?

If I do

    find . -size -1M -print

I get no files listed, but with

    find . -size -not +1M -print

I get a long list of files. The directory in question has lots of files
of all sizes more and less than 1MB.

I'm running Debian testing, which means the shell is Bash. Does Debian
have Gnu's find? If so, the above does not seem to behave as it should.

cheers

Chris
-- 
Chris Dennis                                  cgdennis@???
Fordingbridge, Hampshire, UK