I'm sure this topic has been covered here too many times to mention. So please don't hesitate to direct me to relevant discussions. The problem I have been encountering recently is soreness in the knee joints and popping. After having dealt with this for the past 2 weeks, I've finally decided I have to back off and stop riding till this crap starts going away. I'm not what you call a newbie to riding. I've been riding the past 3 years and have never encountered any problems relating to my knees until the past few weeks. I've been basically riding 25 miles a ride for the past year or so and recently decided to ramp things up in the 35 - 40 mile area. I want to ride in a charity event which is 50 miles in mid-September which may be in doubt at this point. Maybe not? One of the main culprits leading to my knee issues was very recently resolved when I had someone at a local bike shop advise me to raise the seat dramatically higher than it was previously. You see, when I first started riding after a 20 year layoff, I felt very uncomfortable riding is such a high position. I lowered the seat as low as possible. I was able to get away with this till recently. I think this is a major factor for my present situation. Now that the seat is positioned higher, unfortunately things have not gotten better, not worse just not better. I've decided to stop riding for the immediate future till I feel better. This is also complicated by the fact that I'm a city mail carrier and do a fair amount of walking each day which doesn't allow my knees rest. So I'm forced to deal with being alittle uncomfortable at times. Not a big deal mind you, but this is my livelyhood and I can't afford to mess with my knees. So what do you guys think I should do, stopping short of advising me to see a doctor? That's not happening right now. Supplements, medicines, any advise you can give me would be greatly appreciated. I really miss riding and this is the first Sunday in a very long time I haven't been cycling either on a bike or stationary bike at the local gym. It's a very weird feeling.