Why does my buble not work any more??

[96SCTA]

When trying to drive around and watch the ve table the buble just sitts at the bottom. ??? (it does not go up just across the table)
Does anyone have any idea of what may cause this not to work. Somtimes it will somtimes it will not. Is it a soft wear issue. Thanks for any help.

Also i noticed that the rmps on my tach are about 1800 rpms off from what the fast system is saying it is at. Is that typical.
This is in a 1996 lt1.

 

[norbs]

Sounds like the software has been corrupted. Call fast tomorrow and they can send you the updated version for a small fee. I'm sure it wil fix it, or reinstall the software or use the dos version if all else fails, but you will need an older laptop to use dos

 

[96SCTA]

That sucks.

Thanks for you help.
This fast system is kind of a pain in the butt!!!!!!