So this just happened today
I connected my 580EX to my camera and for some reason the sync speed that suppose to go up to around 200/sec, just remained very low.
I was in a fairly dark room so it remained at around 5 seconds.
I tried switching the flash on and off and it doesn't effect the sync speed at all.
Here are my settings:
Flash is on ETTL
No compensation on camera or strobe.
No custom functions are on
Switched to fresh batteries, didn't help
Checked that I'm not on slave or matter mode
Here is something I noticed though, the distance meter is way off, it shows that my subject is over 30 feet away when my subject is right in front of me, maybe 2 feet.
Any help will be great, I just bought it here on the forum and it was working fine for a week and now I feel like my money goes down the drain.