The euro is down big lately, which is to be expected. Over-indebted countries have traditionally used devaluation to keep their debts from crippling them.
The problem is that a cheaper currency is only a temporary fix because it invites retaliation from everyone else. For a real-world example of this process in action, consider what just happened to McDonald's. For the past few years it has been turning crappy food into great numbers, in part by adding new restaurants in hospitable markets and in part because the dollar was relatively weak, which made the euros and yen McDonald's earned relatively valuable.
But with the euro plunging against the dollar, these trends have shifted into reverse: