Changing Schools on a F1 Visa

How many times can an international student on F-1 visa transfer between the colleges in the U.S.? Is there a limit to transfer between the colleges? I transferred fom english shcool to Santa barbara city college. Then I transferred to ohio community college because life expense is cheaper. However, after my first month there , i felt bad and i regretted moving there. i became depressed because i felt that i did bad choice. I want to transfer back to California (to los angels city college) I never failed in any of my previous classes.
Is it going to be a problem for me with the immigration or in the embassy when i will renew my visa the next winter break 2012 ( my visa will expire in 2 weeks).I have transferred to
many colleges in almost one year. Will the officer know about all my transfer?

Thank you

There is no limit to the number of transfers as long as the required paperwork is completed by your colleges - they need to issue an I-20 / SEVIS documentation. If you move, you need to make sure you update your address with the USCIS.