Didn't even think of looking there. here is the info requested.
Show Error List pad if buid finishes with errors is checked
Number of projects in parallel is equal to 2
When Running is set to build all projects.
I should probably mention that the dependancies do change in my project(reference to another project in the same solution). After a little testing the behavior also appears to be different depending on if it is the solution or the project being compiled(think project works and solution doesn't).