mixing Debug and Realese builds of a library not working?

[ekhule]

Hello,

I have a library and a simple application that uses the library. It works with these combinations:

library (debug) - application (debug)
library (release) - application (release)

but it does not work if I mix release and debug versions like this:

library (debug) - application (release)
library (release) - application (debug)

It seems to crash in wierd places.. any idea why this might be happening? Am I required to use debug version of a library with a debug application utilizing that library and vice versa?

By the way, my libraries are all statics .lib files.

Regards,
E. Khule