Irrlicht Engine

ok, I'm running the new Vista... but when i first installed it, i have had no problems with Dev Cpp, but all of a sudden, everytime I go to 'program options', it gives me this Address Error.

(That looks like some memory address problem... could something be using the same memory address?)

I know this isn't really to do with Irrlicht, but Some of you might have an idea or answer to why this is...

Thanks in advanced, And i guess theres no way round setting up the library's/link's/directories any other way...?

I have had this problem for little over a year now. I dont know why it occurs, but i have found that you can enter and save options if you have not yet loaded any file or project. The settings doesn't gets saved until devcpp shuts down, so start, set options, shut down and restart