Template error and parallel foreach bug?

[simendsjo]

I just found Project Euler, and tried to solve the first problem.
https://gist.github.com/1007840

I did four implementations: template, ctfe, parallel foreach and 
parallel map.

The template implementation works on low numbers, but not on 1000 
(haven't checked when it fails). It gives me the following error:
euler1.d(23): Error: template instance 
euler1.SumMultiple3Or5(499LU,Below,57918LU) recursive expansion

The parallel foreach loop works good on low numbers, but when increasing 
BOLOW it starts giving wrong results. The higher the number, the more 
often it calculates wrong results.

This is tested on dmd 2.053 on a dual core Win7.