Jit de-Bugger?

[RecycleBin]

umm... i made a little assault rifel pistol, but everytime i try to import the model. it pops up with this message saying JIT de-bugger is not enabled?
i have installed and re-installed both 1.1 and 2.0 .netframework things, and re-installed HMTv3.5 almost 5 times now. These are non modded fresh maps.
Then i tried re installing .net framework, then halo, then hmt. over and over.
The models are OBJ format by the way.
Does anyone know what is going on?
How can i fix this problem????