By the description I believe you are running a Pansat 2500 box.
Make sure to download the factory BIN from the PANSAT official site and flash your box again.
Maybe your file got somehow corrupted and that is why you are having problems.
Once you flash it make sure to reset the box to default, so it will be just like new and start setting up your sats from scratch.
The 236 file you mentioned is the official one that can be found at the support section on the factory site and it was released on 7-13-2005.
