Bug and suggestion

First i want to give a big Thank you specially to Collin, i've been following the project since its inception and it's one of the best CAN bus tools out there even than very expensive ones like Komodo or VehicleSpy.

I have a little bug (it might be my system but i tried on 2 different setups with the same result) I'm using V187 on a Windows 7 64b sp1, FW343, when i'm running the playback frame sender if i stop and try to delete the selected file the program will crash.
A great feature would be the ability to play 2 files one to each bus (or multiple player instances), another useful thing would be being able to see both buses separated on the "frame filtering" window or to be able to select buses.

Again thanks!!