[galaxy-dev] Stuck at "Job is waiting to run" when using "Get data"

Dear Galaxy team: I was trying to use the Get Data - Upload File tool yesterday. I uploaded all files through FTP. Then selected them in "Files uploaded via FTP", selected "auto-detect" + "Mouse July 2007 (NCBI37/mm9) (mm9)" and clicked execute. My jobs are registered, but they all stuck at "Job is waiting to run". I waited for over 16 hours and they are still showing "Job is waiting to run". I tried to click "Run the job again" and it says "Could not find the job for this dataset". I tried to delete all the jobs, log out and log in. Then add jobs again, but still no luck, they all still stuck at "Job is waiting to run". My data files are 8 x 3Gb sized fastq files. Please help. Liangz