guys i had 64 bit and had a few compatibility issues. After a little advice from someone i have decided that i am going to revert to good old 32 bit. After a year or so ( after my board exams are over

) I am going to dual boot with win 7 64 bit and win xp 32 bit. I will also have time to research. That should solve all compatibility problems.
After all i have exactly 4 gb ram and so there are nt many cons to using 32 bit OS ( except that a bit of my 4gb ram will be unused.) . Thats ok with me as i will go to 64 bit software later. There is no problem in formatting and then installing 64 bit software. There will be hardly any compatibility issues and so i am going with 32 bit for now ( Old is gold).
I also chose win7 over winXP . only thing is that XP was more hardy. also, XP had windows movie maker.( any alternatives for this on win7; i used win live movie maker on laptop and it didnt work properly). Stupid Microsft didnt include this in win7!!