AP pro 1.5 will not render

Question

Sorry to be repetetive but my project will not render for some reason. THis machine in its current configuration
has worked well in the past and the only difference is that I increased the RAM from 1 gig to 4 gigs. It has been suggested
that I deacivate the program and re-install AP Pro 1.5. Is this a good remedy? The machine is a single core P4 3.6ghz and
has done the job just fine prior to this. The ironic thing is that the project will export to DVD withour being rendered and looks
pretty OK with just a couple of minor hiccups in the picture.
Thanks
Mick

Answer 1

Mick,
If you have the red bar but can see the preview without stuttering or hiccups, there is no need to render. If you have used color correction, multiple layers, some other effects, it may be different. Then the preview may stutter and if you want to see it in all its glory, you need to render. Just the other day I had a very long timeline (5+ hours) that was all red. I had no need to render it at all.
On encoding everything is rendered again, but only for the encoding (unless you tell AME to use Preview Files, which I advise against).