I have Playstation +. For the past week, my trophies won't sync past 5%. I can't see my trophies or my profile. What gives? I thought it was supposed to auto sync.
Was everything syncing perfectly fine before you became a Plus subscriber?
Also have you tried switching your trophies from online to offline mode & then trying to manually sync?
Lastly PS Plus only auto-sync's the trophies every two days not every day & I think only then if you have that option turned on in the settings, check your current PS Plus settings. & the time it is set for.
I had an issue once that lasted around a week or so, maybe 10 days where my trophies would get to 5%, then 6, then 7, 8, 9, 10, 11 etc etc & it would over time eventuallY sync, I just kept trying it for a while & then one day all was fine, this does appear to happen to some people every now & again (Google it) & I don't think there's any fix for it, sorry.
To expand on what BRIT said this is what I would do. Before going to bed turn on your PS3, then start the sync, and go to sleep.....maybe in the morning you will have a pleasent surprise!
If its still stuck @ 5% then my only advice is to use the contact info in this link to ask for more help http://us.playstation.com/support/contact_options/