Not to justify his behavior but instead attempting to understand it: I wonder if he's foreign and has been using an online translator to read and post replies.
Yo. So I take it you're using an AMD K6 family cpu/what are your specs? And I take it you're also using Thunderbird as well? MrT said in a message to me that maybe it's something corrupt with Thunderbird, as that is what is causing the crashes (at least in my case) Here's the message:
See, when you check "Mozilla/Cookies" it also clears stuff with Thunderbird. I didn't try anything myself, but maybe you should try uninstalling Thunderbird just to see what happens (as maybe the Thunderbird SQLite databases/.sqlite are corrupted). Personally I think it's just something buggy in the way CCleaner tries to clean it and the problem is with CCleaner. I think it's also just another bug our aging systems are getting prone to. As I said before, very few people are taking account for our older systems when writing modern software (especially more so with the arrival of 8 core CPUs and the like). I can't even install and run Java 6/Java7, or Directx 9 updates. I'm just glad I'm at least able to run Firefox and Adobe Flash 11.
SQLite libraries, according to what I've read on Wikipedia:"Mozilla Firefox and Mozilla Thunderbird store a variety of configuration data (bookmarks, cookies, contacts etc.) in internally managed SQLite databases, and even offer an add-on to manage SQLite databases."