I can´t see .avi files

[gusbatero]

First of all, I'm sorry but my english isn't very strong, I am argentine.
I can't see any of my avi files. I have installed ALL the codecs needed, (Divx 6.22, XviD-1.1.0-30122005, etc.), I DID read the help files but I can't solve this already.
When I want to open an avi file I get this:

BSplayer v2.00.937, Unhandled exception at EIP: 01F00193
If you click 'Close' application will be terminated.
Please report this info to the author with description what were you doing.
If you have internet connection, it's recommended to send error report, this will help us solve problems faster.
Access violation at address 01F00193. Write of address 99F1F18A
EAccessViolation
Call stack: 00000000,01F00193,00404843

I saw something similar in other posts, tried all without solution.
Something I see (and is very strange for me) is that in Options/preferences/video, the properties configuration of DIVX 3, DIVX4+ and FFD show are LOCKED (in grey), like they are not installed, but they are! It seems like BSPLAYER can't see it.
What can I do? Thanks in advance for your help. I want to use this wonderful program.