Flash & PHP IE problem?

I’ve got a basic login and registration system built in flash which communicates with an sql database by sending variables to PHP using LoadVars and the sendAndLoad method. I’ve finally got it working perfectly, but for some reason only in firefox.

In IE it seems to fail to read in any PHP. For example in firefox logging in would display a wait message in flash, and the status bar would read “waiting for http://…” etc before logging in successfully. In IE the flash wait message would appear indefinitely and the status bar would just display “done” without any activity.

Is there any reason why a flash file will work perfectly in Firefox and not IE, and if so is this a common problem? If not please let me know and i will post up my code to see if anyone can figure out the problem here.

Many thanks in advance.