I am using v.0.8.8.1.
That is too old. You need to upgrade to current version from the OP.
Then wait 24 hours to see if the transaction eventually goes through.
If not, then backup your wallet and then delete the wallet.bin file (not .keys file) and restart the wallet. The coins will be returned to your balance.
Thanks, I just upgraded to 0.8.8.4-release, and replaced all my wallet files with backed up versions. Everything synchs up fine, and my balance returned to what it was before.
However, now, when I try to make a transaction, I get this error message
Error: transaction <764cee70aaf2d9c320a9578efe5cc3f5fc43304a173f56bd6792172a8755b93f> was rejected by daemon with status "Failed"
and in the deamon, I get
2014-Oct-29 11:15:17.503604 [RPC0][on_send_raw_tx]: Failed to process tx
The same thing happens if I use the official osx binaries, or if I install by brew. Any ideas?