Try this screen test with your EVO and report back

[slow4g63]

funny this came up... I had this happen to me last night.
I was laying on my bed with my head propped up and have the phone laying on the blanket in front of me... when it was laying on top of the blanket (on it's back) I wasn't able to push any buttons, but the second I picked it up vertical it acted fine. weird!

[munsterrr]

works fine on wood, 2 in thick steel, aluminum, plastic

[Mbai2]

It hasn't happened yet on my Evo and it may or may not be a bug. If it is indeed as your guys describe, it just may be something inherent to the design of the capacitive screen. Unlike resistive screens that create their own loop, these screens use you finger as a conductive device to create a loop. If the your finger is too dry, you may not have enough conductive surface area to complete the circuit unless you press hard enough to flatten your finger tip. When you are laying it on a "non-conductive surface," you are actually just laying it on a slicker surface so you aren't pressing as hard on the screen because the phone would just slip around if you did. Less finger surface area touches the screen, the circuit doesn't complete, the screen doesn't respond. Next time this happens, try pressing slightly firmer on the screen or lick/wet your finger tip (for testing only; not recommended for normal use) to see if it solves it.

[shappy0869]

Originally Posted by Mbai2

It hasn't happened yet on my Evo and it may or may not be a bug. If it is indeed as your guys describe, it just may be something inherent to the design of the capacitive screen. Unlike resistive screens that create their own loop, these screens use you finger as a conductive device to create a loop. If the your finger is too dry, you may not have enough conductive surface area to complete the circuit unless you press hard enough to flatten your finger tip. When you are laying it on a "non-conductive surface," you are actually just laying it on a slicker surface so you aren't pressing as hard on the screen because the phone would just slip around if you did. Less finger surface area touches the screen, the circuit doesn't complete, the screen doesn't respond. Next time this happens, try pressing slightly firmer on the screen or lick/wet your finger tip (for testing only; not recommended for normal use) to see if it solves it.

I first noticed this when my Evo was firmly in a car mount. However, dry fingers might be partially to blame. Even though I am in south Florida and it is hot and humid here, I was obviously in an air conditioned car.

[meatgel]

I'm going to mention this ... and whether it has anything to do with this or not, I don't know. My screen started out by being odd or laggy when I was trying to unlock. Picking it up, I don't think, was about a "connection" as much as it was about giving it time to catch up. Over the next day or so, it was slow/laggy moving through home screens and typing with swype got increasingly more difficult. The buttons weren't as responsive and everything about the screen seemed Jumpy."

Soft resets and pulling the battery didn't change a thing.

I read in a different thread about pulling the battery and then holding the power button down for 10 seconds without the battery in. This put my screen back to the way it was on day one.

I'm not saying it will fix the issues you may be having, but if it is just placebo effect, I'm fine with that. If I have screen issues again, this will be the first thing I try.

[Cicatrize]

I don't have this issue, but I tried it just now to test and had a little trouble getting the notification bar down if I do it FAST. But then I put it in my hand and had the same problem. Maybe you're doing it too fast?

I've tested this on a table and on a bed and it never misses my keypresses.

[karong]

yes i have experienced this as well. Not a big deal to me but i thought it was weird

[tj.iscool]

no problems here

[Adrianh85]

Originally Posted by slow4g63

funny this came up... I had this happen to me last night.
I was laying on my bed with my head propped up and have the phone laying on the blanket in front of me... when it was laying on top of the blanket (on it's back) I wasn't able to push any buttons, but the second I picked it up vertical it acted fine. weird!

we have the same issuse with the incredible!! its said to be due to grounding!! there were some test ran and if u put ur phone on styrofoam it might not work at all due to grounding

[Cicatrize]

Originally Posted by Adrianh85

we have the same issuse with the incredible!! its said to be due to grounding!! there were some test ran and if u put ur phone on styrofoam it might not work at all due to grounding

I've seen those videos and done all the tests with my Evo and haven't had any of those issues.