I built a new system and i put a x1900xt in it. I started lookin at it and in my catalyst ati overdrive section area it said my current vpu clock was at 500 and my current memory clokc was at 594. I knew these numbers were low and i saw something that said ATI will never underclock the card below stock settings. So i hit the unlock thing and Im not giong to turn it off becaues those settings look right. Now i cant lock it? What'd I do? I dont think i like this catalsyt stuff 🙁. Is my card running slow?