Errors while posting latest entry

Greetings…

I’m new to WordPress, but managed to get started just fine with my blog.

On my latest post (4th), however, when I hit Save or Publish, I get a screen of MySQL related that means absolutely nothing to me.

The post is similar to the three previous ones.

I’m using a version of WordPress that has been pre-installed and configured by my hosting company (Netfirms). I can’t say for sure that it’s version 2.5.1 because I can’t see version info anywhere.

Suggestions?

Here’s part of the dump I get…

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘s mid-year review, we’ve prepared a chart of the best performing equities in the’ at line 5]
UPDATE IGNORE wp_posts SET post_author = ‘1’, post_date = ‘2008-06-17 10:17:41’, post_date_gmt = ‘2008-06-17 15:17:41’, post_content = ‘First, a quick reminder that even though the weekly commentary you find here is often published on Mondays or Tuesdays, the Data & Charts workbook is almost always updated on the weekend. That way you “weekend analysts” can get to work on planning your buy and sell orders for Monday morning, if that seems to be the thing to do. The S&P/TSX Composite Index slipped back -1.3% last week, while the major US indexes were mixed. The Dow was up 0.8%, the S&P500 essentially flat, and the Nasdaq down -0.8%. 57% of the stocks in the S&P/TSX Composite Index currently have positive trend values, down from 66% the previous week. Continuing last week’s mid-year review, we’ve prepared a chart of the best performing equities in the index.

…followed by more of my test and a chart, then at the end I get…

Warning: Cannot modify header information – headers already sent by (output started at /mnt/w0508/d15/s06/b027ce85/www/profitrend.com/tsx_blog/wp-includes/wp-db.php:102) in /mnt/w0508/d15/s06/b027ce85/www/profitrend.com/tsx_blog/wp-admin/post.php on line 122