Acrobat suddenly uses 22GB of RAM

Hi,

Every couple of months, Acrobat goes screwy.  I'm using Acrobat 64-bit, all current updates are installed.

When it happens it slows my laptop  down for 10 mins - laptop only intermittently responsive, no taskbar, black screen coming and going.  Generally it seems very close to crashing.

This time, I did manage to open task manager and it showed that Acrobat was using 22GB of memory, even though I hadn’t had it open when the problem started.  I used task manager to close the Acrobat process and the laptop recovered back to normal.

Maybe Acrobat was going through some sort of update process, but that shouldn’t have caused it to use 22GB of memory and the problems I experienced.

I think maybe it was the updater running in the background – but it shouldn’t be using such a ridiculous amount of memory.

Has anyone else experienced this?  Is there a known cause and a solution?

Thanks