If you are installing from the blue disc, you shouldn't have any problems.
But remember to right-click the install program and "Run As Administrator".
If you are installing from an older Black and White disc, there are a few extra steps to follow.
...
Re: 18F2580 with strange behaviour when using Hserin and RX interrupt
Hi Richard,
PaulMaker Today, 13:51you are correct (as always)!
I thought we had to choose internal insteal of primary since it's set to an internal osc.