[OzTeX] strange new problem with AlphaX

[Harriet Lord]

Today a strange new problem occurred while using AlphaX.  I've never
seen this before, and would appreciate your advice on how to make it
disappear.

When I attempt to (la)tex a file from AlphaX using <command T> I get the
message from Alpha
"Sorry, no support for your latex app."
When I type <command T> again OxTex texes that LAST file that it texed -
not the one I was working on in Alpha.

This has been working fine until today. Yesterday I had no problem, and 
I don't recall making any changes.

Any suggestions would be greatly appreciated.
Harriet Lord