A weird problem, suggestions?

I was riding on the weekend and came to a stop at my sister's house. When I stopped, bike in 1st gear, clutch in and front brake on, the whole instrument cluster went blank and the bike died. Strange. I checked the fuses and the 15amp fuse for starting the bike was blown. I replaced it and no problems. The other day I was wheeling the bike out of my condo complex parking lot (bike in neutral, ignintion on ready to start) and the tachometer needle flicked up for a brief second (up to maybe 2K rpm) as I was coasting (bike turned off) out of the parking lot, then the fuse blew again.

This morning I went out to start the bike, had it in neutral, ignition on and the bike not moving and the tach needle jumped up again to 2K rpm before I started the bike; no fuse blown this time though. Also, it takes about a minute or so before the tach will flick; the bike being in neutral, turned off but the power switch on.

I'm thinking a short somewhere, and possibly related to the tach wiring. I did pull the body panels off and the tank out and checked all the wiring I could see but nothing looked like it was shorting. I also pulled the ignition switch off and apart and nothing there as well. Any clues?

Thanks in advance,
Jonathan