Camera lag during save

I've been having an issue upgrading to 64 bit OS (win7) recently. I've finally got most of the things working except saving images. The setup is a Camera (connected via firewire card) from cooke corp (pco.1400). The images are captured by a program provided by cooke corp and then sent to a main program (via enqueue) so that I can save the images and control other parameters such as voltage. The issue arises when I try to save the images. The FPS drops from 7 to 3. This is an issue because of drift in the machine we're using. I would like to think this isn't an issue, but you never know. I have 1 SATA III 1TB (ST31000524AS) drive, with a write speed of over 100MB/s (connected likely to a 3Gb/s SATA port), I can't see why this would be the issue. I'm saving the files as .png (which usually are around 1.3 MB to 2 MB).
The program itself also writes to a log file, this could be part of what is slowing it down? I'm not sure what else to say. I've included a copy of the program. I apologize for the lack of commenting and the poorly laid out structure.
Peter
Attachments:
Control_v02.016_peter4r.vi ‏1963 KB
ScreengrabV3.vi ‏75 KB

Hi Peter,
I am a little unclear on what your actual issue is. Are you not able to save images? Do you get errors, what exactly happens (images are not saved, images are wrong format, images are distorted)? Or is your issue that the FPS slows down but you are still able to save images?
If you remove the writing to log files does that speed your program up?
Tim O
Applications Engineer
National Instruments

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