I also have this problem. Had the error, didnt fix it, ended up with a sync notification icon "stuck" in my notification bar. Read somewhere that it could be because I reloaded system data with my titanium backup. In the process of trying a new wipe and reloading just my apps to see if that helps.
UPDATE:
Ok so after another factory wipe I rebooted, rerooted (although it said I already was), downloaded Titanium backup and restored ONLY user apps and the app data (not system). Havent had the blur problem nor the stuck sync icon.
Im thinking that when you activate your phone it "activates" blur along with your gmail information (which is what the syncing was related to, I think). If you reload system data the phone gets confused because it probably doesn't match up with whatever new state the activation created, thus the blur error and constant "sync" to solve the problem.