Hi Marcus D. Leech,
Thank you for your response.
I never use the peak hold button on this machine because I cannot
click any buttons on the screen ---- begin the program running, it is
also dead as the same time. As I said before, I cannot do nothing only
force quit
I really want to know how to fix it. On my other laptop, I do not meet
this problem. And the system difference between the two computers is
that I install the grc part in the laptop which met the problem.