Awesome. Worked like a charm. Slightly modified the clocks to 1000/1250 and still pulling 55KHs per.
--scrypt-chacha -o -u -p -R 8000 -g 1 -w 128 --buffer-size 2656 --lookup-gap 3 --temp-cutoff 85 --nfmin 4 --nfmax 30 --starttime 1388361600 --gpu-engine 1000 --gpu-memclock 1250 --auto-fan --temp-target 75 --temp-overheat 80 --temp-cutoff 85
Also, YACMiner does work with CGWatcher. Just need to rename the EXE to "Cgminer.exe". Furthermore, on my one Windows 8 Rig, one of the cards doesn't seem to play well with YAC. Works fine with CGMiner. Have rebooted but will keep on tweaking to figure it out. Thank you again!
I'm glad it worked!
Do you have 8GB system RAM? Try increasing virtual memory to at least 16GB also to see if it makes a difference.
Maybe your system cannot address enough RAM to initialize. (try closing some apps etc. =p)
Other than that, it's all about finding the sweet spot of -R and --buffer-size really.