I'm just curious about the error... what could be causing it since it seems random?
I'm planning to run putty to log serial data, then use Excel to plot the data. I was testing this setup with a USB GPS puck.
Putty updates the log file, seemingly every time data is received. I've imported this text data into Excel and set the update properties to 1/min.
I've created plots from the data and, magically, when the data is updated, so are my plot ranges.
This ran a few hours yesterday, but this morning Excel was displaying the subject message. I clicked cancel and Excel seemed locked, or rather the whole computer was just being slow (the plots would not display again). I closed Excel and it prompted me to save.
I restarted Excel and it picked up from where it was, updating my data and plots again, until the subject message appeared after maybe an hour. I restarted and it's running fine again.
The problem does not really matter much because putty continues to build the log file, and I do not really need quasi-live plot data, but it would be nice to have it available. CPU usage is very low and memory is ~70% of 8GB installed (but I have a lot of productivity software running now, like MS Office and some Adobe apps). There are ~150k lines of data now in about 20 rows.