Had a Pulsar HD38s for about 8/9 months, when I first got it it was as clear as a bell on both white and black heat, after about 5/6 months there has been a huge deterioration of picture quality. I used to be able to scan with it when it was still daylight and pick up deer, fox, rabbits etc with no problem, now, not a chance! Had it out tonight and it seems to be getting worse, it was sent back to scotcountry but it came back without any improvement. Has anyone had/heard of this problem? It will be going back this week but was interested if anyone knew what the problem was?