Import WordPress eXtended RSS (WXR) file – Error 109 and 110?

Hi all ??

I love WordPress and am running seven blogs, all version 2.3.1

I’ve used this option many times and it’s worked in previous versions of WordPress but I’m running in to big problems importing via:
Manage -> Import -> WordPress -> then importing an exported XML file from a different blog to duplicate content across two domain web servers.

Previously this has worked like a dream but now the exported file upload (from one blog) process begins and then finally returns the following error/s:

The uploaded file could not be moved to /home/XXXXXX/public_html/XXXXXX/wp-content/uploads/2007/12. with “110” or “109” in the bottom left-hand corner of the screen.

N.B. The exported files are below the stated maximum on the server (2mb in all cases).

I checked file/folder permissions, no problem.

I tried uploading the file via FTP in to the directory and tried uploading via Manage -> Import -> WordPress hoping it would prompt for an overwrite but no ??

I can’t easily copy/paste in to the other duplicate blog/s and would like to know if anyone else has experienced the same problem in WP v 2.3.1

Thanks ??

Drew