Powerpoint Attachments (Database Error)

[topianno]

Hello,
I am having a problem uploading powerpoint files via vbulletin. I have added the ppt extension to the extension manager. However, whenever I try and upload a powerpoint file the system gives me the following message:

A database has encountered a problem.

Please try the following:
? Load the page again by clicking the Refresh button in your web browser.
? Open the home page, then try to open another page.
? Click the Back button to try another link.

The forum technical staff have been notified of the error, though you may contact them if the problem persists.
+
We apologise for any inconvenience.

I have tried turning the options to "Display thumbnail for this type" on and off as well as for the option to open the attachment in a new window. However, I still get an error and it won't let me upload a powerpoint file.

I know it is not an issue of max file size because I have it set to 20 megabytes and the file Im trying to upload is only 2 megabytes.

Any ideas anyone?

Thanks!

-Gabe