Help. I'm using the latest version of Trados (7.00).
The latest version is 7.5 - which version are you using? (Full version number including the 'build number', please - go to Help - About... to find out.)
When I ask it to clean up a document nothing (apparently) happens. However, according to the log everything is in order.
What type of document are you working on?
If it's a Word document, have you tried creating a copy and running the tw4winClean.Main macro? (Use the forum search for earlier discussions describing the macro and its use.)