Please don't post off-topic responses in other threads. I have split this topic and moved it to the TG2 support forum.
In answer to your problem, render resolution is not the only consideration in determining the source of a problem. We really need to know more about your scenes as well as your computer environment to understand why it may be crashing.
How much free memory do you have on your computer before you start TG2? How about after you start it? What about when rendering? Do you have any free memory when TG2 crashes?
Next, we need to look at the details of your scene. Are you using very high settings like detail above 1? Do you have raytraced shadows turned on in atmosphere or clouds, or GI Surface Details enabled? Things like this can make a big difference.
The best test to do is see if it really crashes *every* time you render higher than 600 pixels. The easiest way to do this is to try it with 4the default scene. Just load up TG2 and then increase render resolution to where it usually crashes and render *with all other settings default*. This will tell you if it's really a resolution issue, or something else.
- Oshyan
