blackfoot11
http://money.cnn.com/retirement/
Educate yourself, before it is too late.
To answer your question: as long as you are working for the company, don't rollover your account. Contribute as much as you can. Your company will match your contribution up to 1%. So, if you don't contribute or you contribute less than 1%, you are giving away free money.
To retire comfortably, one should at lease contribute approximately 6% of annual income for about 30 years. This is a very rough guidance. Circumstances like rate or return, level of income, and personal goals play major roles.