You need to make sure WebDAV is installed. You can find more information around installing WebDAV in the PLM4P install guide.
we have webdav installed, it has worked previously for multiple activities. For some reason when we add a new document now it doesn't work
can you provide some more details? do you have the edit link and when you try to edit, it opens in read-only? or, are you missing the edit link altogether? what version of PLM4P? OS? What are you using for WebDAV? (ie. Apache mod_dav, IIS 6.0)
it may be faster to submit an SR so support can assist you.
In-Place Editing does not work on .xlsx documents. It only works with .xls documents. Oracle needs to fix this so that in-place editing works with MS Office 2010. Hope this helps.
Can you tell me what version of PLM4P you are running? 32-bit or 64-bit?