Hi and thanks for answering.
I did not install any kind of registry cleaner on Windows 7 and as you can see below, i do have all 3 options enabled and i told Windows 7 to remember the 10 last used programs . . .
I had the same issue with Vista, i tried everything, even that registry "fix". Nothing worked and/or fixed my problem on Vista.
So, i read some good reviews for Windows 7 and decided to put as main.
Formated everything, installed Windows 7 from scratch in my main drive.
Everything has been working great, yea little bugs here and there, but besides of that i am really happy.
BUT, then the same problem i had in Vista, started happening here.
At the first time, i noticed that it wiped out the "Most used programs" AND "The programs that were pinned in the start menu". The whole left bar was empty . . .
But now (LUCKILY), it just wipes the most used programs and the recently used files . . .
As you can see in the pic below, Irfanview, just got added, after using it for a bit . . . There is no set time, but after a while, it will disappear . . .
http://img403.imageshack.us/img403/6968/40381116li3.jpg
I am unsure what to do now, i am starting bout thinking of a full format just to get rid of this crap . . . (Hopefully)