You are not alone Dennis! There sure seems to be some weirdness associated with the Search function and it isn't due to the recent changes.
On November 2nd, In post
http://www.montanaowners.com/forums/...ad.php?t=41713
KTManiac notes that the Search Function appears to be not fully functional. He made a posting on Aug 1st describing his counter extension. However if one Searches on "counter extension" his post does not appear.
The problem was there on Nov. 2nd (before the changes) and still exists today (after the upgrade). And it fails equally well regardless of the browser you are using.