Shift and option key

For some reason, I have never been able on my computer to use the option drag and the shift key restrain feature on this computer, it is about a year old. On my older macs all the option and shift key features work. This is happening in photoshop and Illustrator also.

This is a I Mac 2 GHZ Intel Core 2 Duo
Freehand 10
Illustrator 12.01
Photoshop 9.02