Sonar platinum display lag

Try saving the project in a new folder with a slightly augmented name, and test it to see if it functions properly. Worth a try.

Well - sometimes the Picture Cache folder can get a bit full or otherwise whacked, and I have seen threads about that causing flaky display scroll on playback or recording.
 
The 'fix' for the above is to delete the contents of the Picture Cache folder, and Sonar will recreate anything it needs to - what's in that folder are the approximations of the wave files in audio clips that display when Sonar has audio data in a track.  Since Sonar recreates it as is goes, it won't hurt anything to delete the contents of Picture Cache.
 
On my system, the Picture Cache folder is within the Cakewalk Content folder.  I cannot recall if that is the original location or not, but when you find it, that's it.  (If you are feeling less than brave about deleting content from Picture Cache, you could always copy the folder's content off to some other location, in case you wanted/needed to restore that data).
 
Bob Bone
 

I did delete the picture cache already to try to fix the problem but no luck. As far as computer specs I'm using an hp elitebook with a quad core i7 and 12 gigs of ram. As far as the project it's at 16 bits 48, maybe 35 tracks or so, good amount of plugins going, but I don't think it's anything to do with running out of resources. Everything runs very smooth until I scroll down and have those two tracks showing, then it gets visually laggy and hard to work. If I scroll down past that into the take lanes it's smooth again and I can work again. The audio runs smoothly no matter what though. It's really weird. Am I not supposed to clone tracks that have a bunch of takes attached to them?

No sorry I should have mentioned I'm using a focusrite Saffire FireWire interface, not the onboard sound card. I don't think it's a latency issue, if I set it low enough sure I can get audio problems with all the plugins and everything going at this point, but I have it set pretty high for mixing. It could have something to do with the graphics card I will try to look for an update and see if that fixes it, but I'm not having any other issues graphics wise, even in sonar, unless those two tracks are on the screen at the same time.