I have used Thor from day one, but I have never had any problems like you describe. I suggest that you go to Tools->Options->File Locations, and make sure that you have everything right there. And make sure to press Set As Default if you make any changes.

>I don't know what is going on since sometime yesterday.
>
>I have been trying to open the class browser... It says invalid path name error 202. When I type ?_browser it shows up as NULL
>If I set it via _obrowser=home()+'browser.app', it doesn't stick. What happens is, when the first time I call it, it gives me the error and when I type ?_oBrowser I get NULL again. This is also happening with other tools as well. (component gallery, task pane, and toolbox)
>
>I have Thor installed and been using it for months, but it has never given me grief before, if that is why. I really like the tools, but will remove them if you think it would help.
>
>Mike