When running a Darcy-Weisbach calculation, after changing your k-factor, the program will not ask to Modify K-Factor anymore

The calculation method you have chosen is only a legal calculation method under NFPA 13 rules for anti-freeze systems and requires modified k-factors

Have the k-factors already been modified

When clicking the Calculate button or the OK button from the Pre-Calc Questions window, you get a Runtime-error 5,

Run-time error '5': Invalid procedure call or argument

When editing the cells, you receive the error Run-time error '6', Overflow

When trying to open a calc job using [File|Open], you get a Run-time error '62': Input past end of file

Dup Equiv K / Sys Pipe Node

The View button that appears after running a calculation does not do anything

Or you get the error; C:\Windows\system32\Write.exe

'file name asked for does not exist!

No error but the calculation process takes a very long time and is slow.

The process hangs and usually the RAM runs up to 100%.  You'll likely hear the computer's fan rev up.

Auto Adjust Fittings defaults to unchecked.

When printing final, you get this error message

"Error during Cover Sheet print, possibly due to missing .DAT file"

When right-clicking the Fittings column, you get a MiscFunc Run-time error 5, Invalid procedure or argument