Yes, my Mazda3 with just over 100K is starting to show it's age, like me. Just the other day, I went to press the switch to roll down my driver's window and it didn't work. I tried a few more times and it did.
Later that evening it did the same thing but there was more of a delay between the time I pressed the switch and the time the window moved up or down.
As there was no noise, I am thinking of getting someone other than a dealership to fix this, but I would need to buy the part. However, I don't know what might need replacing. I guess that's the advantage of going to the dealer, they will go through troubleshooting and then find the true cause. Just wondering on everyone's thoughts or who have had this problem.