Adding attachments produces blank page

[internetwork]

Hi,
I am running a new installation, version 5.0.0 Beta 26. I have no modifications in place. Today I went to add a post with an attachment. The file is a zip file approx 1.5MB. When I select "start upload" the attachments page just goes blank, no errors or other messages. When I close that window there is no attachment in place. I tried using different acceptable extensions (doc, bmp, etc.) all do the same. I even uncompressed the file (it is a powerpoint file) and tried to attach, same problem. I also tried renaming the file. Any ideas?

thanks,
John

[internetwork]

Database error in vBulletin 5.0.0 Beta 26:
[Showing truncated query, original length: 1623677]
[First 100 chars]

Invalid SQL:
INSERT INTO filedata (`userid`,`dateline`,`thumbnail_dateline`,`filesize`,`filehash`,
[Last 100 chars]

\0 \0\0\0\0\0\0\0é3ø¬Î\0<×”ÞüÅ\0<×”ÞüÅPK\0\0\0\0\0\0\0\0\0+\0\0\0','')
/**filedata**/;

MySQL Error : MySQL server has gone away
Error Number : 2006
Request Date : Thursday, February 21st 2013 @ 03:19:23 PM
Error Date : Thursday, February 21st 2013 @ 03:19:24 PM
Script : [URL="http:///uploader/upload"]http:///uploader/upload[/URL="http:///uploader/upload"]
Referrer : [URL="http://mysite.org/forum/main-category/cisco/voip/282-training-materials"]
IP Address : 10.x.x.x
Username : admin
Classname : vB_Database_MySQL
MySQL Version :

[Trevor Hannant]

This is a server issue. You'll need to contact your host about this. Here are the reasons for the MySQL server going away:

https://www.vbulletin.com/forum/showthread.php?s=&postid=310265#post310265

Also from the MySQL site:

http://dev.mysql.com/doc/refman/5.0/en/gone-away.html

[internetwork]

Hi,
I've gone through some of the links....many are dead on that first reference. Just to point out that I am the only one on my vbulletin site, no one else. I tried adjusting the wait_timeout (there was no value so default was likely active). If I try another attachment in a new post, no problem.