Hello Psycho,
A Monitor program uses clipboard, when making voltage into graph. In many cases, a problem should not be generated. Even when a problem occurs, since data is recorded correctly, after it saves data, it can be recalled by the monitor program.
Supposing you have changed option of a monitor program, I will recommend returning it to a standard setup. ie..
o Interval --> Manual
o PC Spec --> Low
o You should not push the update button frequently. Whenever this button is pushed, load is applied to your PC. In Low spec PC, this may become a problem.
Thank you,