> Hello,
> 
> Just did a fresh install of MIDAS from the SVN repository under CentOS and
> everything compiles fine, but when I go to run the frontend (using dio), I get
> the following error message:
> 
> Connect to experiment ...[odb.c:868:db_open_database] Different database format:
>  Shared memory is 14, program is 2
> [midas.c:1763:cm_connect_experiment1] cannot open database
> 
> 
> Any ideas on what the problem could be, or how to fix it?  

You have an old .ODB.SHM from a previous version in your directoy (note the '.' in
front, so you need a 'ls -alg' to see it). Delete that file and try again.