SQL Maintenance Plan Failed

Environment: SQL 2005
Symptom: Scheduled SQL maintenance plan to do partial backup failed. Got two message logged in SQL Server log:
Error: 3041, Severity: 16, State: 1
BACKUP failed to complete the command BACKUP DATABASE master WITH DIFFERENTIAL. Check the backup application log for detailed messages.
Cause: Master database does not support partial backup. So, if the task is for "Differential" backup, "master" database should not be included.
Solution: Open the plan details, in the "Database(s)" section make sure database that needs to be backup are explicitly selected, instead of having "All databases" checked.

Coldfusion Webservice Input Name Changed to in0

Symptom: Coldfusion webservices sometimes complain about input parameter "In0"

Environment: Coldfusion 9 on Windows

Solution: Login to Coldfuion 9 Administrator portal, Go to Server Settings > Caching, click on "Clear Template Cache Now" and "Clear Component Cache Now". This seems to trigger to re-compile of webservices WSDL thus fixed the problem.


However:

1. I don't know what is the root cause of this problem. Google turn-up some similar complains, but could not find any official answers on this
2. The solution which required human interaction does not help in production environment
3. The solution does not solve the problem permanently, sooner or later I'll hit the same error, and has to go back to the server and clear cache again