Hi Anthony, thanx for your reply. I open trak, it shows as a waveform from left to right, I press green triangle, it whips from full left to full right in well short of a second and so have not been able to do any editing at all. Have tried other tracks and they all do the same. The numbers from left to right are 0.00 to 0.42 whatever that means, it can't be seconds. The only thing I have done, is yesterday I put a bird call track on, it worked fine, I cut it and pasted over music on PTE and now... audacity doesn't seem to work same. I'm afraid I have to leave it at that, have visitors coming at 8 but hopefully you might get a clue from all that ? Cheers Colin