Calc-2.02f doesn't work on Emacs 21.2.1

[Jasen]

Does anyone here use Calc on Emacs?  I'm using Calc-2.02f for quite a 
while. Recently, I installed new Emacs 21.2 that comes with Redhat 8.0 
then Calc doesn't work anymore. I can't key in any numbers for 
calculation and it complaints [Bad format], Has anyone got the same
problem?

Thanks,

Jasen