PhpED occasionally locks up and will show as Not Responding for many minutes. Sometimes it comes back but other times I need to force it to close and loose my unsaved work. It is not related to the debugger as it occurs when not debugging.

Not possitive, but I think it might be related to the following:

PhpED has a feature which when adding script such as [code$obj = new SomeC[/code] , it will search for any classes that match the the entered characters, and pre-populate . While helpful,, unfortunately my PC isn't as powerful as I would like and it just locks up searching for the class. It doesn't happen after entering most of the class name but when just starting such as .

Could this be causing the lockups? If so, how can I either turn this feature off or prevent lookup until a given number of characters are entered? If not the culprit, what might be causing this and how do I fix it?

Thanks

Try to close all browser windows, kill browser processes in TaskManager, then re-check the IDE if it works better. If it does, you need more memory. Otherwise you need faster disk.
As of the # of characters, it's in Tools->Settings->Code Completion, Min Characters, and all checkboxes above.