Bit of a panic this morning when we found we got error 491 when trying to d/load anything from the market.
Cleared cache, no go
Cleared Google Play cache and data, no go
Removed the account and re-signed in, no go
So, in case it happens to you, looks as if removing the account and starting afresh works. Not a clue why
Edited by greyrider, 13 October 2013 - 10:17 AM.