Microsoft adCenter has been converting & to & (the HTML entity) frequently lately. This has created difficult in tracking ads over the network. Your analytics package fails to tracck the URLs and the data is never reported.

Microsoft has sent no early information to the users and this has resulted in inconvinience for the latter. You can find discussions over the topic at DigitalPoint Forums. 

Click here to subscribe to our RSS feed to get a daily digest of news around search engine industry. PageTraffic SEO Blog is updated four times a day and is ranked as one of the best search engine resources blog by Pandia!