Problem doing consecutive flights

[Stan]

Whenever i do two flights consecutively the client tells me my FS is not started on the second flight.The only way to get round this problem is for me to delete the client and then re-download it.I have to do this each time i do two flights.
I have tried with client 2.00 and 2.02 but it is still the same.
I am using Windows 7 premium.
In case it is a problem with file ownership i am going to try again later after i have checked that i actually own the fsairlines files and have permissions to change them under the options menu.
I have solved this problem by right clicking on the client and selecting "run as Administrator".