You can contact IRS to check the status of  your refund with a copy of your return:

1-800-829-4477 (automated)
or
1-829-1040
or

https://sa2.www4.irs.gov/irfof/lang/en/irfofgetstatus.jsp

http://www.irs.gov/individuals/article/0,,id=96596,00.html