Did you install the
driver update from the hp site dated 05/2009? It may fix the 2nd tray.
Select software and drivers*
Description: This Print Driver Update contains improvements for issues related to the following applications and/or print functionality:
Microsoft Office 2007
Duplex printing via network
Printing from Intuit applications
Print margin accuracy
Thai language font
Enhancements: Microsoft Office 2007: Prevents crashes in Excel and Power Point.
Duplex printing via network: prevents a false "duplexer not connected" error message.
Printing from Intuit applications: Resolves inability to print from Intuit applications in Vista 64 bit OS.
Print margin accuracy for HP Deskjet D4200: Resolves issue where printed content gets clipped prematurely due to incorrect margin limits in landscape orientation.
Thai language font: Resolves issue with printing Thai font incorrectly in Word 2007 in Vista.
Description: 
This Print Driver Update contains improvements for issues related to the following applications and/or print functionality:
Microsoft Office 2007
Duplex printing via network
Printing from Intuit applications
Print margin accuracy
Thai language font
Enhancements: 
Microsoft Office 2007: Prevents crashes in Excel and Power Point.
Duplex printing via network: prevents a false "duplexer not connected" error message.
Printing from Intuit applications: Resolves inability to print from Intuit applications in Vista 64 bit OS.
Print margin accuracy for HP Deskjet D4200: Resolves issue where printed content gets clipped prematurely due to incorrect margin limits in landscape orientation.
Thai language font: Resolves issue with printing Thai font incorrectly in Word 2007 in Vista.