There was a problem in CF7.0.1 standard edition where if you hit any error in a page using CFDocument, any other page using cfdocument will hang. This was a threading issue we had for standard edition and was logged as bug 61378.

This was fixed in the hotfix 1 and is available at
http://www.adobe.com/support/coldfusion/ts/documents/aae43964/chf7010001.jar

However I would recommend you to use hotfix 2 at
http://www.adobe.com/support/coldfusion/ts/documents/aae43964/chf7010002.jar
See the details of this hotfix at http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=aae43964