Button 'Sticks' when released

[beforethelight]

I have been searching for some help on this for a while but cannot fix it myself or find any information so here is my issue. On some (Android)devices my buttons when pressed then released hang in the pressed position for a second or so after release.  My code is below.  For this example it is a gas pedal for a car and when you release it and it doesn't stop accelerating it becomes a problem quick.  I have run this in FixedUpdate as well as Update with no change.  I have a similar issue with my space lander game buttons sticking.  Any help would be greatly appreciated. Thanks

1. #pragma strict
2.  
3. var release : String;
4. var go : boolean;
5. var drive : Drive;
6.  
7. function OnPress (isPressed : boolean) {
8.         if(enabled){
9.                 go = isPressed;
10.                 if(!isPressed){
11.                         OnRelease();
12.                 }
13.         }
14. }
15.  
16. function FixedUpdate(){
17.         if(!go){
18.                 return;
19.         }else{
20.                 drive.Accelerate();
21.         }
22. }
23.  
24. function OnRelease(){
25.         drive.Released();
26. }
27.  
28. function OnDisable(){
29.         if(!go){
30.                 return;
31.         }
32.         go = false;
33.         drive.Released();
34. }
35.  

[ArenMook]

NGUI events are sent in LateUpdate, which happens every frame, while physics updates (FixedUpdate) occurs every so often -- by default 20 times per second, although I don't know what it's set to in your Physics settings. Certainly nothing in NGUI would cause the state to "hang" for a second or two.