Doh! I thought it would be something stupid. Thanks for the help.
Point taken about printing the uninitialized variables, too. The file is checked in the called script so it won't be in this one when it is complete, as a result the problem will cease to exist. Nonetheless I obviously need to be more observant. Thanks for the pointer.

In reply to Re^2: File exists when confirmed in script but not when open is attempted by same script by greymoose
in thread File exists when confirmed in script but not when open is attempted by same script by greymoose

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