Help with CGMiner and Slush's pool

[tospace2006]

I can't seem to connect to slush's pool at all last few days through GUIMiner so I tried with CGMiner and still no luck.
This is the bat file I'm running for CGMiner

cgminer.exe -o http://api.bitcoin.cz:8332 -u tospace2006.worker1 -p 123 -I 9 --auto-fan --auto-gpu --gpu-engine 875,975 --gpu-memclock 300,300

did I mess something up??

[autonomous42]

You should be using stratum.bitcoin.cz:3333

[Bitcoin Merchant]

Good luck i suggest guiminer tho

[tospace2006]

You should be using stratum.bitcoin.cz:3333

It finally worked! But now it's not recognizing both my cards...
I'm running a GTX460 and HD7950 at the same time.
It's mining off only off the GTX460 right now. Also my screens have been flickering since I turned on the miner which is even stranger because the screens are off the 7950 which the program doesn't even recognize