It seems that every time I get work from Climateprediction.net, within the first 10 sec of the calculation running, I get a Fortran error message (will screenshot next time), and BOINC shows calculation error for that piece of work. I've had a calculation error occur before on another project, but never a system error message. I've yet to have work from Climateprediction that doesn't end with a Fortran error.

Has anyone else had this issue and/or know of what's causing it, or how to fix it?

Have a look in the CPDN forum and/or here

Looks like it's a known issue that happens periodically. Fairly new to BOINC, so I guess I just haven't been around long enough to really know what's normal, or what isn't. Thanks for pointing me in the right direction!