This has bit me too :-/
If the transactions show in Electrum as pending but haven't been propagated to the network (no trace in block chain.info), is there a way of resending them?
Or do they disappear by themselves and the coins are available again?
What happens if I try to spend the coins that are stuck? Will the transaction get thru? (since the network has no knowledge of the previous stuck transaction?
Thanks!
You could try changing servers and see if the transaction has been seen there, if not try to recreate it.. (with a higher fee perhaps)