Here's my batfile :
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer -o stratum+tcp://stratum.wemineftc.com:4444 -u maursader.1 -p x --scrypt --gpu-engine 1075 --gpu-memclock 1485 --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap 2 --no-submit-stale --auto-fan
742.2khash/sec , could push it to over 750 if i wanted to, but it's too hot here atm

Current temp : 74°
Thank you for the suggestion, here are the results:

Run this
cgminer --scrypt -o stratum+tcp://stratum.wemineftc.com:4444 -u maursader.1 -p x --intensity 13 --worksize 256 --thread-concurrency 8192 -g 2 --gpu-engine 1051 --gpu-memclock 1722 --auto-fan
This caused the computer to lock up, lol.
I wonder if it's got anything to do with the thread concurrencies, and I only say this because when I run cgminer by itself, it tends to choose 22400 for the value.
Any thoughts on that?