Hi Jackal
I have had one of hese saws for about eight years now and this is the first time I have heard it referred to as notorious, a year or so after I purchased it I was supplied with a modification kit by Axminster, details area bit vague now but I seem to recall it involved removing the rise and fall hand wheel assy and fitting a new drive belt (definitely not a chain!). In truth aside from some initial set up issues with the sliding table this saw has behaved impeccably both before and after the modification. I assume that anything built after approx 2005 would have had this modification done at the factory although it may be worth checking with the uk importers who I believe are Axminster. There is a guy on here called Jetman who works for the importers and he has been very helpful to members over the years, I'm sure if he sees this he will be able to set the record straight.
How old is your saw and how long have you owned it, I have been really pleased with mine in fact I also bought one of the much vaunted Excalibur cabinet saws just before Christmas and I think if I had to chose between them I would stick with the Jet.
Cheers
Richard