Well, iÂ´m running your latest software.
IÂ´got a new laptop now. But i still have a similar problem.
My laptop is an IBM thinkpad . 256 mb memory,
Windows 2000. and i am logged in as a power user.
Picolog was set to stop after 60000 channels
I had set the filterfactor to 6
It stopped after 32760 readings.
i used 3 channels + cold junktion.
Best Regards / Alex
EDIT: I found a newer version of your software.. ( Ill be back with a response in 24 h )