trigger occasionally fails to log frames to memory

Hi

Can some one shed a light on the reasons why Matlab sometime fails to log frames to memory. after running for appprox. 3-5 min the following code, i found trigger(vid) is not able to log any frame to memory even if I extend my wait time(found by using 'isloging' and 'FramesAvailable' commands).My vid is running the whole time checked using 'isrunning' inside the loop.

-----------------------------this is the code i use---------------------------

imaqmem(1000000000);

vid = videoinput('gige',1,'RGB8Packed');

src = getselectedsource(vid);

src.PacketDelay = 1000;

src.PacketSize = 9000;

triggerconfig(vid, 'manual');

set(vid,'TriggerRepeat',inf);

set(vid,'FramesPerTrigger',2);

preview(vid);

start(vid);

pause(2)

for i = 1:10000000

    Trigger = i
    trigger(vid);
    wait(vid,240,'logging')
    RGBimage = getdata(vid,1);
    flushdata(vid);

end

stoppreview(vid);

delete(vid);

clear all

close all

[Hyunsung]

After digging a little bit deeper, it seems like a my object's Timeout value was never reached which causes the failure. is there a way I can monitor my obj's running timeout value constantly so I can verify my assumption?

thx