trying online update (from Help menu) my ID CS5 stops with this error.
small info is suggesting:
- server is temporary unavailable (same since few weeks)
- to check Internet options (works fine since years)
- to check firewall options (to switch it off doesn't help)
is this service stopped by Adobe?
every so often there seems to be a glitch inthe update from the help menu. Try downloading the manual updater from the downloads page.