Noisy backgrounds at different pixel sizes

[allroundniceguy]

Hi folks, trying to find any reference to 'noise' or 'noisy' in the SuperContainer Forums with no success, hence this post:

-- Does anyone know how to combat this noise in the thumbnail files...? It only occurs at specific pixel sizings... that is, make it a few pixels bigger or smaller, and they go away - so something to do with the rendering/downsampling process... and, you guessed it, at the size most images appear on our web catalogue, a noticeable number appear like this.

I'm working off Mac Mini Lion Server, so using the Core Image Previews - and this file was a PDF, originally out of Illustrator. Happy to provide any/all specs on request.

Pre-emptively throwing it out there: please don't suggest to make a white background behind all artwork - we have many many thousands of live and legacy files!

With many thanks,

AB

[Chris Sedlak]

I'm running into the same problem. Appears to be the same server configuration ... Mac Mini, etc. And the latest version on the server and user computer.

If I resize the web portal window, the noise in the background changes. Sometime dramatically where it even shows artwork from other files in the transparent area.

Has anyone resolved this yet?