Since posting the previous reply I've found that the Runtime error '5852'
occurs when both of the following conditions are true:
• A paragraph formatting change was made inside a table.
• A formatting change was made to an end-of-row marker in a table.
MS released fixes for both Word 2002 and 2003 but not, apparently, Word
2000. MSKB articles 837108 and 841539 refer.

Cheers