I don't know if this is a security issue of what it is....I'm just not sure -

Recently I have noticed that (I use windows XP) everytime I go to use an option in the control panel I get a message that I don't have to appropriate permissions. That is only in normal mode, my account is the admin account and the only way I can use anything in my control panel is in 'safe mode'.
I have done everything in my knowledge that I can think of and I can't figure out why it is like this - It never use to be - and more importantly I can't seem to work out how to remedy it.

Any advice?.................

Thanks