[thelist] Off Topic- Photoshop Preferences File

[j s]

Hi 

In, Photoshop 7, when I go to apply a filter the filter panel (where you can set the options) doesn't show up.  Everything locks just like if it is showing.  And other panels come up ok.  So I'm trying to remove the preferences file to see if that's what's stopping it from appearing.  (This worked yesterday).  

I'm working on Windows XP.  Can anyone tell me where the file is located?

Thanks
Jess