Thank you  ...  is there a Maple equivalent to the Mathematica  "NotebookFilename[ ]"  ?

@Axel Vogt 

Thank you, Axel Vogt, for your helpful prompt reply which (of coourse) solved the problem. I naturally feel rather silly now, but if that is the only way to learn  ...  . Again, thanks.

Michael Caola

@Carl Love

I can now acces help ?Orbitals with files Orbital{.hb, .lib, .ind} in c:\program files\maple17\lib.

With many thanks for your patient help,

Regards,                 Michael

@Carl Love

I can now acces help ?Orbitals with files Orbital{.hb, .lib, .ind} in c:\program files\maple17\lib.

With many thanks for your patient help,

Regards,                 Michael

@Carl Love 

Yes, I have 

libname := "c:/MapleLibs",libname;

Is this correct?

Regards, Michael Caola

@Carl Love 

Yes, I have 

libname := "c:/MapleLibs",libname;

Is this correct?

Regards, Michael Caola

@Carl Love 

Again, thanks. Had already unsuccessfully tried "with(Orbitals)".

Regards,        Michael Caola

@Carl Love 

Again, thanks. Had already unsuccessfully tried "with(Orbitals)".

Regards,        Michael Caola

Please ignore recent reply, which contains typo Orbital.mw for correct Orbitals.mw below:

Thank you. Regret typo and have infact used ?Orbitals in Orbitals.mw. And yes, C:\MapleLibs contain the files Orbitals.lib, Orbitals.hdb, and Oribitals.ind? Still no joy.

Regards,  Michael  Caola

Please ignore recent reply, which contains typo Orbital.mw for correct Orbitals.mw below:

Thank you. Regret typo and have infact used ?Orbitals in Orbitals.mw. And yes, C:\MapleLibs contain the files Orbitals.lib, Orbitals.hdb, and Oribitals.ind? Still no joy.

Regards,  Michael  Caola