Had to split my catalogs.
one of 130 000 pictures (can't split more...)
one of 50 000 pictures (can't bother to split more)

The first one is absolutly awfull to manage, have to use autosave every 30min if not after modifications the soft pull an error 'can't write to the disk' at every save. Trouble is, an autosave on a catalog of 1GB take lots of time...

But at least no crashes. Seems i'm pushing it a little to close to its limits...
Have to says it's the only soft that still agree to do his job with so many picts...