I have a Basler a312f camera, connected by a 1394 firewire card to a pc with windows 7 on. Every time I operate the camera using NiMax, it works fine for a few mintues and then stops and writes "timeout error". Then in order to keep working I need to restart the computer. I tried the same camera and card on a different computer and they worked fine. Also I tried on the problematic computer with two other programs, one of them is the Pylon Viewer, and they also got stuck.
You are getting unexpected results from "the same camera and card" on one machine, but not on another. Sounds like you have a bum PC. Don't know whether it is hardware (inside the PC) or software, but I'd definitely look into replacing/fixing the PC, as that seems to be the source of the problem.