thanks again for the comments jamest, added a tad more space between the cats but still can't help being worried about the amount of traffic I seem to be loosing for some reason. I have far more new visitors than returning ones and my stats tell me the new visitors are leaving quicker than the returning ones. Is it me, or is this just the nature of the beast or is there something fundamentally wrong with my site to make people leave quickly?!
I've even analyzed keyword relevancy and most keywords that drive traffic to my site are indeed relevant!. The only other change I'm reverting it to allow guest's unlimited downloads as before I had to limit this to 5 because I was noticing a major increase in downloads on select files which didn't make sense but it seems certain guest's were flooding the download count (possibly not intentially but maybe due to some kind of download manager,etc) which knocked the stats way off (i.e. only 10 views the file but 3000 have downloaded it - that kind of thing) - anyway I'm going to allow guest's unlimited downloads as I'm concerned this may have driven people away so finger crossed!
Cheers
Marko