Here's a little problem that started happening after apache was changed to litespeed on copykat.com server. The problem is that we can't add or upgrade new plugins with the help of wordpress automatic plugin installer. It was fine till we were using apache, so I guess some tweak is required for it to work with litespeed.. i've recorded a video of how it fails on blogdesignstudio.com (hosted on same serve) and like that on various other existing wordpress installs, same issue is happening on 40somethingmommy.com as well, i've recorded a video for that too.. showing wordpress auto upgrade failing and plugin install of comment disable plugin also failed. check the videos - http://www.youtube.com/watch?v=hOKsXxnN2MA http://www.youtube.com/watch?v=wFTklvYwcJk i tried installing all in one seo pack, it failed in mid-way and didn't show the success message although it comes in the list of available plugin (couldn't cover it in video). I tried install FV antispam plugin and it installed on the new install (wp.blogdesignstudio.com) but failed on my own website i.e. http://blogdesignstudio.com (that is covered in the video). I tried to activate the all in one seo on wp.blogdesignstudio.com and that gave error, I think because it was never installed properly. What can be done to fix the issue?