Obscure crash in serum 1.067

It crashes whenever I try to enter 1/(sqrt(q)==rint(sqrt(q))) into Serum's formula parser.

That's an old version - update to the latest version.

I'm still getting some crashes with the formula parser in 1.073. Particularly, if I enter sqrt(1/q)*cos(z*q)^2. It only crashes when I have the z in it though, so that's probably the problem.

Edit: in fact, it crashes whenever a z*q is present. Even if that's all that's entered.
Edit 2: Crashes with y*q also.

It appears to be Windows specific, I'll fix it this week, cheers!

I'm on a mac D:

Ok, I actually wasn't getting the crash on either OS but I did see a non-fatal issue on windows, I was just coming here to edit my post in fact.

 can you do this, in Finder, command-shift-G (go to folder) and type or paste
~/Library/Logs/DiagnosticReports

and email me the relevant crash -> [email protected]
thanks,
Steve