Entity Info bug vs Anti Aliasing question

[osage]

Hi guys. I had a problem with a single file, whereby, after I had applied a color or texture to a surface within a group, and then tried to change it in the Entity Info box, as soon as I click on the box showing the existing color or texture, Sketchup would crash...every single time. This was happening ONLY in this one file. After this happened about ten times, I started looking for the reason, so I opened the Model Info configuration box. The only thing I found that might have something to do with it was the "Anti-Aliasing" on/off selection, which had a "check mark" beside it. I clicked on it, which turned the check mark "off".

Then I reopened the file, and proceeded to change the color of that particular surface again. It worked, and it didn't crash.

So my question is...what does this "anti-aliasing" thing do, and what does it have to do with the Entity Info material/color/texture select and or change process? Especially per file, as this problem didn't occur in any other file.

The reason I ask, is now I have the anti aliasing turned off(I guess), and it would seem that this is a global parameter. I just don't understand what it does, and if I need it ON. And if so, why?

Thanks
fitZ

[jeff hammond]

a basic description would be:

it makes your lines appear less jaggy.

it also uses more system resources when active.

[thomthom]

Have you tried updating your graphic card driver?