First advice: make sure you have updated both LabVIEW and your Driver Station to the proper revisions.
http://www.usfirst.org/frccontrolsystem has links to the updates.
Second advice: if you're using the Classmate for software development, make sure to run the Driver Station application under the Developer account while you're actively programming. It's a lot faster than logging off and logging back in under the Driver account, and it's a lot safer than logging on as both Developer and Driver at the same time with fast user switching.
Third advice: you'll get better help if you have specific issues than if you have general ones.