Windows boot up flickering screen+hang

Hi i would like some support for this problem im facing with my windows

info:
Laptop: dell studio 1557
OS: Win 7 Home Premium 64 bit

Description: Windows was working fine but after a restart when the blue animation screen of "windows loading" appears, the system hangs (i can still move the cursor though) and the screen flickers continuously.! =(

I tried the following to no avail:
1) boot from "last known good config" - Same problem
2) try to restore to an earlier restore point - recently installed my windows, no restore
point detected
3) try to repair startup - no errors detected but booting into windows still same
problem
4) tried to repair windows from the windows 7 dvd - still not working

Windows is booting into safe mode which would mean that there is some driver/software related problem.

I am in the process of uninstalling all drivers and then ill try booting into windows, if it works ill reinstall all drivers again.

I dont want to have to reinstall my os because its painful having to reinstall everything all over again ...

Thanks in advance guys, much appreciated.

Could be a video driver issue or maybe a chipset issue.

You MAY have to do a new install to clear it all up, maybe not. I know it's a P.I.T.A. to have to do a reinstall. Many times things run better though.