Motorola Adventure V750

I have the Motorola Adventure, and I love it! My question is this. When the keypad is lit up, seems like the number 4 and number 7 are a little dimmer than the rest. Does anyone else who owns this phone, notice it on yours? I'm trying to figure out if it's just my phone, or if it's just how it's made. No big deal, but I want to be sure. I was also surprised (in a good way), to find out that the keypad is light sensored. The backlight won't go on in a light room, but as soon as the area gets dim, the keypad lights up. A verizon rep told me that's normal, something about preserving the battery. Would appreciate some info on what I was inquiring about, thanks!! Soooooo glad I didn't get the Boulder, because when it first came out, I was thinking of getting it. It was between that and the Adventure, and I am so glad I got the Motorola. Great phone!