saving vsynch and nr of desktops

Learned brethren:
I've never found how to save vsynch=60 or how to get Knoppix to remember I only want two desktops, not 4. Config save remembers everything else, ok. On reboot vsynch is always wrong and desktop is set to 4 not 2. Knoppix 3, 4 or 5, it doesn't matter.
I save to /dev/sda and start up with myconfig=scan;
adding vsynch=60 to the kernel prompt doesn't help;
myconfig=/dev/sda doesn't help.
It's a minor thing, but I'd like to tweak these two parameters.
Any ideas?