New resolution to new subliminal issue
I previously posted that I had solved a new subliminal issue by updating my video card (nvidia GEForce 9300). It turns out my solution was unstable-- the display time problem reappeared a few days later.
I looked into it a little bit more and started playing around with my video card setting. I seem to have resolved the issue (at least for now) by changing a single setting. I wanted to post my solution in case someone has a similar issue:
I had to change the 3d settings on the video card from emphasizing "Quality" to emphasizing "Performance." Once I did that, my display times were exactly what I programmed them to be. Prior to this solution, display times were typically about 20ms longer than I requested.
If you happen to have a video card similar to mine, it is pretty easy to change this setting. I'm running XP but if you are running Windows 7, the route to this setting should be relatively similar:
(1) Go to control panel and click on "Nvidia control panel"
(2) You'll notice that the left side of the the nvidia control panel has a few options. Go to "adjust image settings with preview"
(3) Now on the right side, you'll see a rotating 3-D picture preview. Under the picture preview, select "use my preference emphasizing..."
(4) Move the bar from "quality" all the way to "performance"-- that just moves the bar from the right to the left.
That simple change enabled me to present subliminal images. Good luck!