I use Acid Pro 7 with a Creative SB X-Fi Platinum Fatal1ty Champion soundcard. My PC runs Windows 7, has 8GB RAM and an Intel i3-2100 CPU @ 3.10 GHz processor. I am usually able to record some audio tracks and monitor them with no problems. However, in most projects, when setting up a new audio track, or returning to an existing one, suddenly I am unable to monitor while recording, although the track does record. Any advice would be welcome.