This has been reported by some in the last few days, you are not alone.
Or, it could just be that today is eBay's maintenance day and many things go a little awry from time to time, see a little later on if it hasn't resolved itself.
I'm tagging our community managers to see if they can shed some light on this, if it is still an issue and eBay are aware, and if there is any news for a fix.
dave@ebay marco@ebay
kat@ebay
@dunca_moor
