Unexpected aborting
 

Sometimes (I don't now if the cause is a long use of BSPlayer or a long movie file [over 90 minutes?], I couldn't relate the crash with an event) I receive a little box telling me that an illegal operation was performed.
For example, after watching the second CD of LXG, on the final generic, I was receiving this message. Behind the crash box the movie continue playing. If I push the Close button, there are several boxes with texts; may be BSP is giving details about the error, but I don't succeed to see them, because BSP is terminating.
I have Windows 98 SE, I don't think that's a codec problem, because I watch a big part of the movie, sometimes near entirely.
My video array has 64 MB of memory, the internal memory is 192 MB of RAM...

What could be there?

Usually this appears on xvid movies. Are we talking about one of them ? What is happening when pressing Continue instead of Close ?