Hi Tracy,
I'm betting you're using AHP 3.236, because I've just gone through exactly what you're experiencing. This appears to be yet another bug in 3.236! I've given up on using the video functions in AHP and have been experimenting with Blue Iris and BIRC (Blue Iris Remote Command) for the last few days. To get things working as they should, I reinstalled AHP, leaving out all the plugins except Smart Macros. It appears that the AHP video functions really "bog down" the system, even when they're not being used.
This setup works much better than anything I've been able to achieve with just AHP. My AHP macro handles the turning on of cameras, etc. and executes BICOMMAND.EXE to tell Blue Iris to start recording and stop recording.
If you want more details, let me know. Or do a forum search for Blue Iris. I don't want to bore everyone with a drawn-out explanation if they don't need it!
ITguy