Help:Gzip
[edit] What Is Gzip?
Gzip is a compression tool used on servers to compress webpages before they are sent to the user in an attempt to save bandwidth. Unfortunately Gzip isn't available on all servers and because it is turned on by default in MyBB 1.2 it can cause functionality problems.
[edit] Do I Have A Problem?
If after installing MyBB you go to your forum index and you see a blank page, or a page of garbled text, chances are your server doesn't support Gzip and it needs turning off in MyBB for your forum to function correctly.
[edit] Turning Off Gzip
Turning off Gzip is very simple. All you have to do is log in to your forum's Admin CP using a web-browser. The Admin CP can be found at "your-forum-directory/admin/", you will need to use the username and password you set up for your Admin account during the MyBB installation to access this area.
MyBB 1.2.x
Once logged in, go to "Board Settings -> Change -> Server and Optimization Options" and set "Use GZip Page Compression?" to "No". Once you have done that, click on "Submit Changes" at the bottom of the page to save the new settings.
MyBB 1.4.x
Once logged in, navigate to Configuration -> Settings -> Server and Optimization Options, and set "Use GZip Page Compression?" to "No." Once you have done that, click on "Save Settings" at the bottom of the page to save the new settings.