[herbnerd]

My new (used) G4 is acting strangely.

The onboard speakers do not work but the plug-in speakers do.

The apostrophe key did not work when the plug-in speakers were used but now the apostrophe key does not work at all.

Any help would be appreciated...

Thanks.

[ibook_steve]

The headphone jack is stuck in headphone mode, disabling the internal speakers. You don't say which G4 it is, but try inserting and removing headphones a few times. Also try resetting the PRAM and PMU. If it still does not work, the logic board may have a problem.

The key problem has nothing to do with this. Doing the resets may fix that too. If not, there could be a problem with the keyboard itself.

Steve