I want to save the last frame only in a dynamic cloth animation (for some reason, my computer keeps plotzing out in the middle of rendering, so I figure if I get rid of the ealier frames...)

So, how do I do it?

export the cloth item as an obj, and load to Poser frome the File >import menu. It will be  a prop but will take the textures. Delete the original cloth item

Yes, but I want to get rid of the other 29 frames of the animation.

Quote - Yes, but I want to get rid of the other 29 frames of the animation.

I don't think you cqn delete the first 29 frames.

After exporting out the cloth OBJ and deleting the cloth model, open the key frame editor.

Select all of the last frame and drag it to the first frame.

Set the number of frames to one, thus deleting the now redundant remaining 29 frames.

Reimport the cloth object and apply its textures.

Hope that helps.

Extra: You may want to save a material collection for the cloth to make reapplying textures easier.

Quote - Yes, but I want to get rid of the other 29 frames of the animation.

Why? Just ignore them. Slide on over to frame 30 and render it...

I'm assuming you're trying to render to a movie file format, such as AVI - don't do that, because as you noted, if your computer gets tired and gives up (as they tend to do), you lose the whole thing. Instead, render to image files and composite them into a movie using an external application. You can then restart the render at any point if it goes wrong, and you don't lose any previous frames. 

PhilC

Thank you so much for that information.  I have been trying to figure that out for a long time.  My reason is that I want to continue the animation from that exact frame without making changes to any of the frames that came before it.  I have an animation of 1000 frames that I am continuing on to 2000 frames.  This allows me to use tweens in the last 1000 frames that do not effect the first 1000 and there is no change to the frame I start with on the second 1000 frames.  Big help for me.

This works perfectly using the "edit keyframes" window.  I just tried it.