I was using the"/2007/01/25/sample-post/" setting in permalinks with /tag in category base.
Now this does not work my pages will not load correctly but go to my archives which is .com/tag
If i turn permalinks setting back to the default "/?p=123" the problem dissappears.
This is occuring in 2.2 bleeding. and started thursday up until then my permalinks have been fine.