MT4 doesn't save trendlines, indicators, etc

Hey guys,

I hope this is the right subforum.

Here is my problem:
I had to reinstall WinXP on my laptop and since then MT4 doesn't save the trendlines and indicators when I exit and reopen MT4. A few days ago, before I shreded my harddrive everything worked fine. I could draw the lines for every currency pair and MT4 saved everything so I could continue my work when I reopened MT4...
But now everything is gone, except my saved template. Can you help me please?

Any help is appreciated!

Sorry for the double post but I found it out myself:

I have two different accounts on my laptop. One administration account with full rights and one with limited rights. Obviously, MT4 cannot save indicators, trendlines etc. when the account which you use during your MT4-session only has limited rights.