The function

```
 s12 = 1/(Log[2^x]*((7.537/(x^2)) + (30.148/((2 + x)^3))))

```

returns expected function values for `0 < x < 10,000`

but the graph drops to 0 at `x = 1024`.

I am using the home version 9.0. Am assuming operator error unless told otherwise, but an older version plots without problems. 

Any advice welcome.