Never had this before. I'm rendering a four minute vid, it's fairly normal footage, but a lot of speeding up, and some large still images in there.
I'm running at what the system is telling me is 3.5gb of RAM.
So what's going on here?
It's OK. I did what my IT department call 'Power Cycling', which is fancy speak for turning it off and on again. There must have been something resident in the memory after all the image processing I did.
All done, cheers anyway.