Some members have trouble downloading files from the forum. They end up being blank or open having a screen shot of the forum post.

The file is not a standard file, it is my own image format cwr. But, I have never had any problem on my other forum with the uploads or downloads of my cwr files.

It affects about 15 percent of forum users and doesn't seem to matter what browser they are using.

It only seems to affect larger files that are uploaded. Any ideas?

I figured I expand on this a little bit. Sometimes members get blank downloads, other times they get a screen shot of the post they are downloading from. Here is a post about it:

http://wrapcandy.com/community/modules/newbb/viewtopic.php?topic_id=240&forum=1

No One has any ideas? Please if you have even a guess, I'm all for it.