Try testing the inputs of your SL1 with a cd player.
When doing so you'll need to change the Audio Input setting within the Hardware tab to 'LINE'.
Play the control cd in the cd player and see if you get good tracking when plugging into both inputs of your SL1.
If you do than the problem would definitely be coming from your turntables.

First I would try switching needles, making sure the wires are connected correctly on the needle/cartridge, and clean the inside of the tone arm(s) with some rubbing alcohol and a Q-Tip.
If that doesn't work than try to jiggling or crimping the rca cables to get a good connection.
Worse case scenario you'll need to get your turntables serviced and have them put new rca cables on the decks, if you used turntables with rca cables that are hard wired to the TT.

The crimping worked, Started playing fine after I found a good spot, yea I guess they need serviced and new rca cables. Thanks for your help Zach.

Cool.. ya.. unfortunately that is pretty common with turntables.

I just realized it too. I've been reading all over about it. I actually tried to solder a new set on and man thats no fun. I'm going to get a pro to do it. Im not too into soldering.

Yes.. its not an easy task. Definitely get someone who knows what they are doing:)

I recently got a mac book and I was wondering how do you save your playlists in the crates. I don't know if its done differently from a pc or how it works? I saved it by turning off serato and then starting it back up before and it would be there. But since I got the Mac its not doing this.

nevermind I figured out that I needed to change the ext hard drives setting to a mac setting.
I do have another question tho, When using keys numbers 5-1 for looping effects, how do I determine what deck I am on. Sometimes when I;m playing a track on say the right side, how do I use the effects on just that side. The left side was looping and I couldn't figure out how to choose the side I wanted

The cues and loop triggers are 1-5 for the left deck and 6-0 for the right deck.

I am now working back to normal, brand new heavy duty rca's on my Techs and everything else is figured out. Thanks for your help!