I have a similar situation. I dropped my classes in Winter 2009, Spring 2009, and Summer 2009. Back in January, I called to ask the FAO if I should go into my account online (my school is also wholly online) and decline my unsubsidized and subsidized Stafford loans since I would not be enrolled that quarter. I was told I didn't have to do that because the funds are automatically sent back since I wasn't enrolled. In Fall 2009, I began class. I requested that the funds from Winter, Spring, and Summer be sent to me because I saw that the school accepted them and I was thinking since they accepted the loans, I will have to repay them, why not request the funds be sent to me.
The FAO reallocated the Summer 2009 loans and named them "loans 2" to be disbursed Fall 2009, Winter 2010, and Spring 2010. I received an installment as a refund for Fall 2009 thus far. After three requests via email, yesterday, FAO finally responded regarding Winter 2009 and Spring. They told me  I was not enrolled  the funds are no longer available because this is a new aid year, as of Summer 2009. My response was again, if I have to repay the loans, I would like them to be sent to me. Waiting for their reply.
Are the loans really no longer available? Do I have to repay them?