XP log on problems

I am running on a network and my log on takes over 30 minutes to log on and the same problem for logging off. Others can log on to my station and it logs on normally. Not quite sure what the problem is or even where to start to fix it. Any ideas?

 

I'm not real clear on what's going on here. I understand your logon is slow. But what do you mean when you say "Others can logon to my station..." Can you clarify this please?
Thanks.

 

Sorry, I mean that when others use their own user info on my station it is fine, but when my logon info is used, well things get real slow. We tried other accounts on my comp just to see if it took as long as mine. Then we tried mine again and after almost an hour we shut it down, which took forever. I hope this answered your question

 

Thanks for the clarification It looks like Tim W has offered some solid advice, more or less where I would have gone also. I'll leave you in his more-than-capable hands
Good luck!