OPTLINK checkpoint(256)

[Lemonfiend via Digitalmars-d-learn]

I was still using 2.066.1.
When I try to build using 2.067.0 or 2.067.1 I get:
Linking...
checkpoint(256)
--- errorlevel 1

with an "Unexpected OPTLINK Termination" popup which lists a 
bunch of registers.

I'm not sure how to proceed..