error of Options list within PKG files when install app on S60 3rd phone

[whitewinds]

I added Options list into PKG files to let user to select whther to install one data file.

!({"Data file(4500KB)"})
IF option1=1
".\Dtrec.dat"-"!:\private\200013a5\Dtrec.dat"
ENDIF

When I install app on S60 3rd phone, the option list was poped up and I can use center selection button to select or unselect the option. There are ok and cancel softkey on the bottom of the screen. When I press cancel, the installation of the app quit. When I press ok, the app will continue the installation.

But the problem is that, no matter whether I have selected the option, when I pressed the ok, the option will be selected first and then continue the installation. That means whether I have selected the option, the datafile will be installed.

It seems that the OK softkey will also affect the selection of option. Can somebody tell me how to solve it?

[whitewinds]

Does anybody know this?

[whitewinds]

I knew that when there are at least two options, the selection is ok.
But when there is only one option, it does not work.

Can I implement mutex selection of the many options when installing?