Millisecond Forums

Hi,
i am currently working on a script in which i want to present trials that start with a fixation, then show stimulus 1, which is then erased, and then show stimulus 2, which participants respond to. The script looks like this:

<trial boxInR>
/pretrialpause = 1000
/validresponse = ("z", "m", "x", "n")
/correctresponse = ("m")
/stimulustimes = [0 = fixation; 500 = boxConGroen; 633 = erase; 866 =boxInRood]
</trial>

(boxConGroen & boxInRood= refer to a png stimulus which is defined earlier).

Here the problem: if i run this trial, inquisit displays the fixation and then the last stimulus (boxInRood) at 500 ms, then erases it, and then shows it again at 866 ms. So I am wondering what happened to the middle stimulus (boxConGroen), which is not displayed?? If i only run /stimulustimes = [0 = fixation; 500 = boxConGroen] I do see it - so the problem is not in the previous coding.

Any ideas why the last stimulus substitutes the middle stimulus (but not the erase or fixation)?

Thanks!