When I go into Sharepoint central administration and start a backup it sits at "Preparing current backup/restore job. If the backup/restore job does not begin after five minutes, make sure that the Microsoft SharePoint Foundation Timer Service is running." and never does anything else.
I've checked and the Sharepoint 2010 timer service is running and I've tried restarting it as well which made no difference.
I've made sure that it's going to a UNC path and granted "everyone" full access to that share.
Any advice on what to try next?