Strange Blogger issue

Although I could log in to Google yesterday I was unable to log in to Blogger. Checking known issues it's listed that some people are having problems.

A check on the forums shows the usual "What's happening?" but some pointed out that if they switched browsers it suddenly worked.

It seems that with Google's upgrades to the Blogger network the old cookies aren't being honoured or refreshed; delete any blogger.com cookies and the system allows you back in.