fabbr1,

That certainly sucks!

As usual, most of us really don't know what the "rules" are when things like this happen. I have no idea what rules Seaborne would be under but I did find an interesting article about how it works in the US and I'm surprised.

Flight delays, your legal rights

A quick summary: In the US airlines have no legal obligation to provide you with any form of compensation. But, each airline has a contract of carriage which states what they will do. The terminology is "events beyond the airline's control" which would be things like when the ATC computer system was bombed in Chicago or a storm hits. Equipment failure is considered within their control. However, if you read the article it looks like most US airlines are covering overnight stays (10pm-6am), transportation to and maybe some food vouchers - I think if your ordeal starts early in the morning and ends at 9:55pm they aren't going to do much for you.