Traktor Sratch Pro/Audio6/Timecode CDs help required

[ds56]

Managed to get it all set up and playing fine, however got 2 issues.

1) I keep getting sound dropouts every 20 to 30 seconds. Upping the buffer size to 1024 got rid of the Buffer Underruns and decreases the amount of dropouts, however i still get lots of USB I/O errors. There is nothing else running on the laptop apart from Traktor and it is a brand new laptop.

2) I can't get Track 1 or Track 3 of the timecode CD to do anything at all. They were bought CDs not burnt. I have the CDJ set to Autocue.

Any help would be greatly appreciated