Candie,
Nalates is correct. Lag can be experienced by having a low connection. I suggest the following:
Check your router's connection
Make sure your firewall isn't blocking Secondlife
Quit, and try Secondlife in Advanced Mode.
Lag can also be produced by having a low graphics card. Check your system statistics and post your results.
NOTE: Be sure to restart your computer after making changes to your Computer/Router.
- Tom Perkins