When double clicking the HydraCAD icon with the "HydraCADV50.2" profile, the AutoCAD splash screen hangs with the word "Loading"

AutoCAD MEP 2013 has new swtiches set in shortcut that we don't Opening AutoCAD MEP

stacked rn connects to first pipe and misses second pipe leaving a pipe going up to nowhere. this is caused by a floor boundary with a negative elevation adn computer generated VP

Error 52 trying to insert fittings for calculations. Error 71 disk not ready error trying to use the sizing button. error 52 or 71

Files or folders in the C:\HES are set to 'read-only' n/a Toolbars AutoCAD 2015

Move or Copy Slow Graphics

After calculating the system, the results show, "Your System Has a Deficit"

System is -nan(ind) psi over the Water Supply Curve

HydraCALC is calculating the equivalent lengths wrong 

HydraLIST process freezes at Processing Reports

In a paper space viewport, certain blocks or dimensions do not appear, even though the layer is ON and set to Plot in Current Viewport

It may appear as if the layer is not showing up, but it is really certain items in the layer