Echo while recording vocals

Hi everyone,

I recently switched from:

Pro Tools 24 Mix - Apogee AD 8000 - Yamaha 02R console, to
Pro Tools LE - Mbox2 Pro - Yamaha MG 24/14FX console.

I did the setup the same way as the old one, and everythings’s working fine, except that the vocals now sound with a sort of short echo through the headphone, as well as in the monitors, although it isn’t recorded, just monitored. Any idea?

Thanks in advance

Thanks everybody. Zimv20, you were right: enable low monitoring latency. It fixed the problem. I'm new with PTLE and I didn't know about this.

Drumjim85 and pKoch1, the H/W Buffer size is 512 samples and the DAE Playback Buffer is 1500 ms, Level 2. Are these parameters OK to work?

Thanks again