do not have permission to perform actions

[NOT ADMIN :P]

lately (as of 2 days ago) i have had a problem of trying to DL something or run an application and i will recieve a message " you do not have permission to.... , please contact your administrator." This is a stand alone computer. hooked up to the net.
1 USER!. it is an admin account. Vista x86 (32 bit).

i am computer savy, at first i thought it may be a trojan of sorts. System scan revealed nothing. using eset nod32 AV. outpost pro firewall. Virus signature DB up-to-date.

[NOT ADMIN :P]

any one who reads this may suggest something. I am not concerned if you are CH admin or well reknown.

Even simple suggestions or possiblities will be appreciated .

Maybe i am not seeing something very simple. : (

[Broni]

Try this: http://www.howtogeek.com/howto/windows-vista/enable-the-hidden-administrator-account-on-windows-vista/
Be careful, while playing with it.

[programming_pat]

how did you go with that

[patio]

how did you go with that

Stop with these Please...