Not to able to log in after welcome screen



Hi

I have a dual boot option in my laptop , one for xp and windows server 2003 , i am able to log on to xp perfectly but when i try to login in 2003, after entering a the username and password , i just get a blank screen , i tried booting in to all the modes ( safe mode, with networking , command prompt ,lkgc ) but still the problem persists .
Please let me know what should be done in this regard
Thanking you in advance
Regards
srini

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