Decaflon

I am getting a strange error during the IMPORT process in Wordpress.

I posted on the Wordpress Forums, but here was my question

I have successfully "exported" my blog entries from one of my WordPress blogs (version 2.2.1) and have tried to "import" those entries into my other Wordpress Blog (version 2.3.2).

I get the following error in my error log files because typically Apache or whatever throws the "500 Internal Server Error page".

Premature end of script headers: php5.cgi, referer: http://www.[removed-my-url].com/wp-admin/admin.php?import=wordpress&step=1

What would be causing this? Is it a problem with my version of WP I am exporting from (maybe the export document has been updated)?

Thanks