impossible to run Mathematica ??

[Marcelle Soares-Santos]

hello,

I'm trying to install Mathematica 5 at Ubuntu 6.06.
The installation process seems to be ok, but I can't start the program.
I just receive a msg like

Warning: translation table syntax error: Unknown keysym name:  osfActivate
Warning: ... found while parsing '<Key>osfActivate:PrimitiveParentActivate()'
Warning: translation table syntax error: Unknown keysym name:  osfCancel
Warning: ... found while parsing '<Key>osfCancel:PrimitiveParentCancel()'
Warning: translation table syntax error: Unknown keysym name:  osfBeginLine
Warning: ... found while parsing '<Key>osfBeginLine:PrimitiveTraverseHome()'

well, it's a loooooooog msg, so I've just copied a short part of it.
how can I solve this problem?

thanks, marcelle.