My guitar will play for a minute or so then quit. If I unplug and plug back in it will play for a while and quit. Etc.

It is not the amp, as I tried another one. It is not the cable, as I tried a few of those as well. Also my other guitar works flawlessly.

The guitar in question is a Music Man Majesty.

I'll run it to the repair shop in the morning.

Any suggestions?
Sounds like a loose connection or bad solder joint.

Could also be a dirty switch - especially if you have a Les Paul type toggle.

Cleaning the output jack, pots, and switch with quality contact cleaner like DeOxit would be a great step as well.
Ibanez RG1570 Prestige
Jackson Kelly KE3 - MIJ (Distortion/Jazz)
Jackson DKMGT Dinky (EMG 81/85)
ESP E-II Eclipse Custom (JB/'59)
ESP LTD EC-1001FR (EMG 81/60)
Fender MIM Strat

Mesa/Boogie Dual Rectifier Roadster 212
Laney IronHeart IRT-Studio
Peavey Vypyr 30
Peavey ReValver Amp Sims
TOOOO many T.C. Electronic Pedals. . .
Thanks...it was the batteries. The guitar is about 4 months old and we've never had one with active pickups....