Quote:

it fail's tomuch and is to slow



Well if that's the case then KiXtart is not going to help out there either. Sounds like you have either some basic networking issues or very slow bandwidth for some or all systems.

One way to lower some of that bandwidth use would be to quit mapping during every logon. Just permanently map the drives and be done with it.
 
Make sure your DNS/WINS is setup and functioning correctly too which might be the cause of some failures.