Hi... i've read several go's and no-go's about this. I could't get ANY third-party firmware loaded into my GS V4.0. I've read some of you CAN. My question is.... HOW. I know there are problems with the V5.0 models though. Am I missing something here? Tried DD-WRT V22 and V23 both generic and GS versions but still no-go. Please help or confirm it is a no-go.