[tex-live] TeX-Live installer fundamentally flawed for TeX Live 2005 ?

[Philip TAYLOR]

On attempting to install TeX Live 2005 from
the TeX Live 2005 Inst CD (Lehmanns/dante e.V./TUG),
I find it impossible (having selected "Scheme: full")
to deselect my non-required languages, since every
time I move the mouse after clicking on the "Select"
button of the "Language collections" option, the
"Languages" pop-up disappears :-(((

Is this a Well-Known Phenomenon [tm] ?

Philip Taylor