Got in car last week and car wouldn't start. (Battery is new) Tried it a couple hours later and it did. After a mile or two it died at intersection light. Again wouldn't start for 4-6 hours. When it does start it will always just STOP and shut off. Lights, stereo, convertible top all work, but WINDOWS will not go up (only down) until it starts again hours later. Ugghh! Iv'e been told STARTER...or FUEL PUMP...? I replaced the CRANKSHAFT SENSOR two years ago when it was dying on me, could it be bad again already? 
Any thoughts or ideas?? Thanks

Any thoughts or ideas?? Thanks