Thanks both of you, and I've changed my signature now too, couldn't work out what was different but that was it!
Also, I have now got a prime number to my credit in PrimeGrid as well! Unbelievable, all this time I've been trying to no avail, then the first week I join your team and I find one! Annoyingly, I was too slow to get my name against it, I'm just the checker, but still, it's a start and makes me happy. Need to find some more now!