[LPH2005]

@boonebgorges
Plugin: http://buddypress.org/community/groups/forum-attachments-for-buddypress/

I’m getting a strange problem.

Upload a PPT as an attachment.
FTP shows file uploaded.
Forum post shows uploaded file.

However … the download of PPT is a problem.

Opening the downloaded file gives an error that the file is not PowerPoint.

I can FTP, download the uploaded file in the bb-attachments directory, and that file opens properly.

Any suggestions? Ugh. I have 21 student PPTs needing uploading and should have checked this before

Tried Google Chrome and IE on the following uploaded ppt:
Site URL: http://www.thechembook.com/groups/first-year-chemistry-learners/forum/topic/ppt-lesson-01-what-is-chemistry-3/

[LPH2005]

The plugin “Tamper Data” shows the correct content-type set for the download as well as the transfer as “binary” …

[LPH2005]

Uploaded pptx file format and this downloads properly.

[LPH2005]

Hmm.. Now I am really confused. I can upload other ppt files created by the students and it works. I copied the first one tried to a whole new ppt and uploaded it to a whole new thread – and the download of the file failed. Crazy. Something in that file is just not liked.

[LPH2005]

OK. Tried several different configurations and finally discovered that any ppt that is opened in Office 2010 and saved as ppt has the same problem described. The ppt will upload properly but upon download the file will not open in Office 2010.

[LPH2005]

Uploaded all PowerPoints in .ppt format through /wp-admin, added dl links to a post, and they all work. There must be something in that download portion of the bb-attachments plugin that is causing a corruption. Here are the files available for dl.

PowerPoints Started by Chemistry Students, Fall 2010

[LPH2005]

Found the problem – but don’t have a fix

When W3-Total Cache is enabled then the download for the ppt is corrupted. Disabled the caching plugin and the download works properly.

Now, I just need to find the fix.