Yeah, depending on what make inverter you have you'll have to use a specific proceedure when plugging in. The Triplite inverters have problems with GFI's but there is a post where someone found a solution. I'll see if I can (or another member can) find it.
[edit] here ya go:
viewtopic.php?f=14&t=2003
I have a Prosine 2000 that does not have that problem, but I still ran a circuit from my house panel to a standard RV pedestal. Even though our vans are 110 only, I ran 220 with a 50A but also have a 30A 110 plus 2 110 outlets off a 20A