Fatal Error: Access violation

[loldi]

Just started getting this error today, not sure what the issue is but I've never gotten it before.

[Juan Conejero]

This does not provide any useful information to diagnose the cause of the problem. We need more information, such as:

- What were you doing in PixInsight just before the error arose?

- Have you installed some nonstandard modules?

- Potential hardware errors?

- Anything we can use to reproduce and/or understand the problem?

[loldi]

My mistake:

- I just finished running a DBE on the file, had 5 separate FITS open at the time

- No extra modules installed

- Never had any hardware issues before with PI, or any issues at all for that matter.

- The three times it happened I was doing something different each time,  but I may have had two instances of PI running at the same time without knowing it.

Sorry I can't give any additional information but each time was different.  I'm going to try to reproduce it by having two PI instances open and see if that was the cause.

edit:

Just got the error again processing a different set of data.  I had just run a color calibration on the data and was in the process of deleting the previews I generated.  I deleted Preview01 but the little box appeared to still be there and when I clicked on it I got that fatal error.  I did not have 2 PI windows open.

System settings:

Windows 7 64 bit
RAM: 12 GB
Intel i7 CPU @ 2.10 Ghz
Pixinsight newest version