I can’t see the images here: panda3d.org/manual/index.php/Cheat_Sheets
Tell me if it’s just me or something is wrong with the server.
I think p3dp.com is down… and I think it’s down for good. That’s kind of sad, it was a good place to keep demos, tutorials, code snippets etc.
The bullet examples by enn0x where also hosted on p3dp.com, now there gone 
enn0x.p3dp.com/bullet-samples.zip
Wasn’t it hosted by CMU like this site?
Nope, it was hosted by Bigfoot29. Sad to see it go. The whole point of that site was that these kinds of resources would have a place to go where they would not disappear in time.
If someone has the original files, please upload them on the manual’s upload form and replace the links on the manual page.
I can’t upload images.
Set $wgShowExceptionDetails = true; at the bottom of LocalSettings.php to show detailed debugging information.